diff --git a/01-query.html b/01-query.html
index ecade6fe..f9307fd1 100644
--- a/01-query.html
+++ b/01-query.html
@@ -1367,7 +1367,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1390,7 +1390,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/astronomy-python/01-query.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/02-coords.html b/02-coords.html
index eae6713e..e066d236 100644
--- a/02-coords.html
+++ b/02-coords.html
@@ -523,7 +523,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb13">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -638,7 +638,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb19">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -815,7 +815,7 @@ <h3 class="callout-title">Exercise (10 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb29">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1269,7 +1269,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1292,7 +1292,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/astronomy-python/02-coords.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/03-transform.html b/03-transform.html
index 09430f24..c028f50e 100644
--- a/03-transform.html
+++ b/03-transform.html
@@ -1186,7 +1186,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1209,7 +1209,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/astronomy-python/03-transform.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2024-05-07",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/04-motion.html b/04-motion.html
index b61ef16f..6d862c63 100644
--- a/04-motion.html
+++ b/04-motion.html
@@ -413,7 +413,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>Previously, we ran a query on the Gaia server, downloaded data for
 roughly 140,000 stars, transformed the coordinates to the GD-1 reference
@@ -497,7 +497,7 @@ <h3 class="callout-title">Exercise (10 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The most noticeable issue is that some of the parallax values are
 negative, which seems non-physical.</p>
@@ -957,7 +957,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb44">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1080,7 +1080,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1103,7 +1103,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/astronomy-python/04-motion.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2024-05-07",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/05-select.html b/05-select.html
index 04e8a34a..c9c132a0 100644
--- a/05-select.html
+++ b/05-select.html
@@ -410,7 +410,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>Previously, we ran a query on the Gaia server, downloaded data for
 roughly 140,000 stars, and saved the data in a FITS file. We then
@@ -564,7 +564,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb8">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -702,7 +702,7 @@ <h3 class="callout-title">Exercise (10 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb18">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -743,7 +743,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb19">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1018,7 +1018,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1041,7 +1041,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/astronomy-python/05-select.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2024-05-07",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/06-join.html b/06-join.html
index fafa5e03..583c9652 100644
--- a/06-join.html
+++ b/06-join.html
@@ -421,7 +421,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>In the previous episode, we define a rectangle around stars in GD-1
 in spatial coordinates and in proper motion which we transformed into
@@ -1072,7 +1072,7 @@ <h3 class="callout-title">Exercise (15 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb45">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1237,7 +1237,7 @@ <h3 class="callout-title">Exercise (15 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb54">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1565,7 +1565,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1588,7 +1588,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/astronomy-python/06-join.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2024-05-07",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/07-photo.html b/07-photo.html
index 30226a8f..a67dee7b 100644
--- a/07-photo.html
+++ b/07-photo.html
@@ -418,7 +418,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
 <div class="accordion-body">
 <p>In the previous episode, we selected stars in GD-1 based on proper
 motion and downloaded the spatial, proper motion, and photometry
@@ -478,7 +478,7 @@ <h3 class="callout-title">A slight detour for non-domain experts</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler2" aria-expanded="false" aria-controls="collapseSpoiler2">
   <h3 class="accordion-header" id="headingSpoiler2">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> The color magnitude diagram of GD-1 and foreground stars </h3>
 </button>
-<div id="collapseSpoiler2" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler2" aria-labelledby="headingSpoiler2">
+<div id="collapseSpoiler2" class="accordion-collapse collapse" aria-labelledby="headingSpoiler2" data-bs-parent="#accordionSpoiler2">
 <div class="accordion-body">
 <p>As a pathologist can easily point to tumor on a biopsy slide, so too
 can astronomers who study stellar populations see two stellar main
@@ -859,7 +859,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb30">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -964,7 +964,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb38">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1153,7 +1153,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1176,7 +1176,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/astronomy-python/07-photo.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2024-05-07",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/08-plot.html b/08-plot.html
index 5433dacc..46de129c 100644
--- a/08-plot.html
+++ b/08-plot.html
@@ -415,7 +415,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>In the previous episode, we selected stars in GD-1 based on proper
 motion and downloaded the spatial, proper motion, and photometry
@@ -507,7 +507,7 @@ <h3 class="callout-title">Exercise (10 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>No figure is perfect, and everyone can be a critic. Here are some
 topics that could come up in this discussion:</p>
@@ -580,7 +580,7 @@ <h3 class="callout-title">Exercise (20 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb4">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -704,7 +704,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb7">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -759,7 +759,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb11">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -878,7 +878,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5"> Show me the solution </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb17">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -995,7 +995,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6"> Show me the solution </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <p>Without <code>tight_layout</code> the space between the panels is too
 small. In this situation, the titles from the lower plots overlap with
@@ -1060,7 +1060,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7"> Show me the solution </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb24">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1186,7 +1186,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8"> Show me the solution </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb32">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1218,7 +1218,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution9" aria-expanded="false" aria-controls="collapseSolution9">
   <h4 class="accordion-header" id="headingSolution9"> Show me the solution </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb33">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1321,7 +1321,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1344,7 +1344,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/astronomy-python/08-plot.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2024-05-07",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/404.html b/404.html
index a2092cf1..7293b420 100644
--- a/404.html
+++ b/404.html
@@ -364,7 +364,7 @@ <h1>Page not found</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -386,8 +386,8 @@ <h1>Page not found</h1>
   "url": "https://datacarpentry.github.io/astronomy-python/404.html",
   "identifier": "https://datacarpentry.github.io/astronomy-python/404.html",
   "dateCreated": "2020-05-11",
-  "dateModified": "2024-09-03",
-  "datePublished": "2024-09-03"
+  "dateModified": "2024-09-10",
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index 0d1d7676..f5a5ed75 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -380,7 +380,7 @@ <h1>Contributor Code of Conduct</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -403,7 +403,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://datacarpentry.github.io/astronomy-python/CODE_OF_CONDUCT.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/LICENSE.html b/LICENSE.html
index 4d21115f..6483461e 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -428,7 +428,7 @@ <h1>Licenses</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -451,7 +451,7 @@ <h1>Licenses</h1>
   "identifier": "https://datacarpentry.github.io/astronomy-python/LICENSE.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/aio.html b/aio.html
index c3b9d612..3561e28f 100644
--- a/aio.html
+++ b/aio.html
@@ -1620,7 +1620,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb13">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1739,7 +1739,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb19">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1924,7 +1924,7 @@ <h3 class="callout-title">Exercise (10 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb29">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -3269,7 +3269,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>Previously, we ran a query on the Gaia server, downloaded data for
 roughly 140,000 stars, transformed the coordinates to the GD-1 reference
@@ -3357,7 +3357,7 @@ <h3 class="callout-title">Exercise (10 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The most noticeable issue is that some of the parallax values are
 negative, which seems non-physical.</p>
@@ -3831,7 +3831,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb44">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -3998,7 +3998,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>Previously, we ran a query on the Gaia server, downloaded data for
 roughly 140,000 stars, and saved the data in a FITS file. We then
@@ -4158,7 +4158,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb8">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4302,7 +4302,7 @@ <h3 class="callout-title">Exercise (10 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb18">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4343,7 +4343,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb19">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4669,7 +4669,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>In the previous episode, we define a rectangle around stars in GD-1
 in spatial coordinates and in proper motion which we transformed into
@@ -5344,7 +5344,7 @@ <h3 class="callout-title">Exercise (15 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb45">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -5511,7 +5511,7 @@ <h3 class="callout-title">Exercise (15 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb54">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -5892,7 +5892,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
 <div class="accordion-body">
 <p>In the previous episode, we selected stars in GD-1 based on proper
 motion and downloaded the spatial, proper motion, and photometry
@@ -5954,7 +5954,7 @@ <h3 class="callout-title">A slight detour for non-domain experts</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler2" aria-expanded="false" aria-controls="collapseSpoiler2">
   <h3 class="accordion-header" id="headingSpoiler2">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> The color magnitude diagram of GD-1 and foreground stars </h3>
 </button>
-<div id="collapseSpoiler2" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler2" aria-labelledby="headingSpoiler2">
+<div id="collapseSpoiler2" class="accordion-collapse collapse" aria-labelledby="headingSpoiler2" data-bs-parent="#accordionSpoiler2">
 <div class="accordion-body">
 <p>As a pathologist can easily point to tumor on a biopsy slide, so too
 can astronomers who study stellar populations see two stellar main
@@ -6345,7 +6345,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb30">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -6454,7 +6454,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb38">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -6688,7 +6688,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>In the previous episode, we selected stars in GD-1 based on proper
 motion and downloaded the spatial, proper motion, and photometry
@@ -6786,7 +6786,7 @@ <h3 class="callout-title">Exercise (10 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>No figure is perfect, and everyone can be a critic. Here are some
 topics that could come up in this discussion:</p>
@@ -6867,7 +6867,7 @@ <h3 class="callout-title">Exercise (20 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb4">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -6995,7 +6995,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb7">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7052,7 +7052,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb11">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7173,7 +7173,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5"> Show me the solution </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb17">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7292,7 +7292,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6"> Show me the solution </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <p>Without <code>tight_layout</code> the space between the panels is too
 small. In this situation, the titles from the lower plots overlap with
@@ -7359,7 +7359,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7"> Show me the solution </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb24">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7487,7 +7487,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8"> Show me the solution </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb32">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7519,7 +7519,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution9" aria-expanded="false" aria-controls="collapseSolution9">
   <h4 class="accordion-header" id="headingSolution9"> Show me the solution </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb33">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7616,7 +7616,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer>
 </div> <!-- / div.container -->
@@ -7639,8 +7639,8 @@ <h3 class="callout-title">Key Points</h3>
   "url": "https://datacarpentry.github.io/astronomy-python/aio.html",
   "identifier": "https://datacarpentry.github.io/astronomy-python/aio.html",
   "dateCreated": "2020-05-11",
-  "dateModified": "2024-09-03",
-  "datePublished": "2024-09-03"
+  "dateModified": "2024-09-10",
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/calculating_MIST_isochrone.html b/calculating_MIST_isochrone.html
index 75be8d99..2087b965 100644
--- a/calculating_MIST_isochrone.html
+++ b/calculating_MIST_isochrone.html
@@ -599,7 +599,7 @@ <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"><
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -622,7 +622,7 @@ <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"><
   "identifier": "https://datacarpentry.github.io/astronomy-python/calculating_MIST_isochrone.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/discuss.html b/discuss.html
index 016652c9..58418a1a 100644
--- a/discuss.html
+++ b/discuss.html
@@ -373,7 +373,7 @@ <h1>Discussion</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -396,7 +396,7 @@ <h1>Discussion</h1>
   "identifier": "https://datacarpentry.github.io/astronomy-python/discuss.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/images.html b/images.html
index 38ebe5ba..45905b87 100644
--- a/images.html
+++ b/images.html
@@ -530,7 +530,7 @@ <h3 id="08-plot-figure-6">Figure 6</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer>
 </div> <!-- / div.container -->
@@ -553,8 +553,8 @@ <h3 id="08-plot-figure-6">Figure 6</h3>
   "url": "https://datacarpentry.github.io/astronomy-python/images.html",
   "identifier": "https://datacarpentry.github.io/astronomy-python/images.html",
   "dateCreated": "2020-05-11",
-  "dateModified": "2024-09-03",
-  "datePublished": "2024-09-03"
+  "dateModified": "2024-09-10",
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/index.html b/index.html
index a5b8c719..6c0e7e12 100644
--- a/index.html
+++ b/index.html
@@ -538,7 +538,7 @@ <h3 class="callout-title">Why didn’t the imports work?</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -560,8 +560,8 @@ <h3 class="callout-title">Why didn’t the imports work?</h3>
   "url": "https://datacarpentry.github.io/astronomy-python/index.html",
   "identifier": "https://datacarpentry.github.io/astronomy-python/index.html",
   "dateCreated": "2020-05-11",
-  "dateModified": "2024-09-03",
-  "datePublished": "2024-09-03"
+  "dateModified": "2024-09-10",
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor-notes.html b/instructor-notes.html
index 195119d5..027dec30 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -993,7 +993,7 @@ <h3 id="episode-8-visualization">Episode 8: Visualization<a class="anchor" aria-
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer>
 </div> <!-- / div.container -->
@@ -1016,8 +1016,8 @@ <h3 id="episode-8-visualization">Episode 8: Visualization<a class="anchor" aria-
   "url": "https://datacarpentry.github.io/astronomy-python/instructor-notes.html",
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor-notes.html",
   "dateCreated": "2020-05-11",
-  "dateModified": "2024-09-03",
-  "datePublished": "2024-09-03"
+  "dateModified": "2024-09-10",
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/01-query.html b/instructor/01-query.html
index 30b4da2a..03c8221e 100644
--- a/instructor/01-query.html
+++ b/instructor/01-query.html
@@ -1369,7 +1369,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1392,7 +1392,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/01-query.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/02-coords.html b/instructor/02-coords.html
index 32e47cf6..056532b0 100644
--- a/instructor/02-coords.html
+++ b/instructor/02-coords.html
@@ -525,7 +525,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb13">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -640,7 +640,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb19">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -817,7 +817,7 @@ <h3 class="callout-title">Exercise (10 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb29">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1271,7 +1271,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1294,7 +1294,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/02-coords.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/03-transform.html b/instructor/03-transform.html
index ab0e1c6e..3e78fb34 100644
--- a/instructor/03-transform.html
+++ b/instructor/03-transform.html
@@ -1188,7 +1188,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1211,7 +1211,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/03-transform.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2024-05-07",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/04-motion.html b/instructor/04-motion.html
index 279d871f..247edcb7 100644
--- a/instructor/04-motion.html
+++ b/instructor/04-motion.html
@@ -415,7 +415,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>Previously, we ran a query on the Gaia server, downloaded data for
 roughly 140,000 stars, transformed the coordinates to the GD-1 reference
@@ -499,7 +499,7 @@ <h3 class="callout-title">Exercise (10 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The most noticeable issue is that some of the parallax values are
 negative, which seems non-physical.</p>
@@ -959,7 +959,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb44">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1082,7 +1082,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1105,7 +1105,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/04-motion.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2024-05-07",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/05-select.html b/instructor/05-select.html
index 315ffc59..e5e21a25 100644
--- a/instructor/05-select.html
+++ b/instructor/05-select.html
@@ -412,7 +412,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>Previously, we ran a query on the Gaia server, downloaded data for
 roughly 140,000 stars, and saved the data in a FITS file. We then
@@ -566,7 +566,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb8">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -704,7 +704,7 @@ <h3 class="callout-title">Exercise (10 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb18">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -745,7 +745,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb19">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1020,7 +1020,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1043,7 +1043,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/05-select.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2024-05-07",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/06-join.html b/instructor/06-join.html
index bd7fbeae..687604ef 100644
--- a/instructor/06-join.html
+++ b/instructor/06-join.html
@@ -423,7 +423,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>In the previous episode, we define a rectangle around stars in GD-1
 in spatial coordinates and in proper motion which we transformed into
@@ -1074,7 +1074,7 @@ <h3 class="callout-title">Exercise (15 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb45">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1239,7 +1239,7 @@ <h3 class="callout-title">Exercise (15 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb54">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1567,7 +1567,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1590,7 +1590,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/06-join.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2024-05-07",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/07-photo.html b/instructor/07-photo.html
index d5056665..b83c6245 100644
--- a/instructor/07-photo.html
+++ b/instructor/07-photo.html
@@ -420,7 +420,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
 <div class="accordion-body">
 <p>In the previous episode, we selected stars in GD-1 based on proper
 motion and downloaded the spatial, proper motion, and photometry
@@ -480,7 +480,7 @@ <h3 class="callout-title">A slight detour for non-domain experts</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler2" aria-expanded="false" aria-controls="collapseSpoiler2">
   <h3 class="accordion-header" id="headingSpoiler2">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> The color magnitude diagram of GD-1 and foreground stars </h3>
 </button>
-<div id="collapseSpoiler2" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler2" aria-labelledby="headingSpoiler2">
+<div id="collapseSpoiler2" class="accordion-collapse collapse" aria-labelledby="headingSpoiler2" data-bs-parent="#accordionSpoiler2">
 <div class="accordion-body">
 <p>As a pathologist can easily point to tumor on a biopsy slide, so too
 can astronomers who study stellar populations see two stellar main
@@ -861,7 +861,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb30">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -966,7 +966,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb38">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1155,7 +1155,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1178,7 +1178,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/07-photo.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2024-05-07",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/08-plot.html b/instructor/08-plot.html
index 8657bc71..473fed16 100644
--- a/instructor/08-plot.html
+++ b/instructor/08-plot.html
@@ -417,7 +417,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>In the previous episode, we selected stars in GD-1 based on proper
 motion and downloaded the spatial, proper motion, and photometry
@@ -509,7 +509,7 @@ <h3 class="callout-title">Exercise (10 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>No figure is perfect, and everyone can be a critic. Here are some
 topics that could come up in this discussion:</p>
@@ -582,7 +582,7 @@ <h3 class="callout-title">Exercise (20 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb4">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -706,7 +706,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb7">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -761,7 +761,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb11">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -880,7 +880,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5"> Show me the solution </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb17">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -997,7 +997,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6"> Show me the solution </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <p>Without <code>tight_layout</code> the space between the panels is too
 small. In this situation, the titles from the lower plots overlap with
@@ -1062,7 +1062,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7"> Show me the solution </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb24">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1188,7 +1188,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8"> Show me the solution </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb32">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1220,7 +1220,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution9" aria-expanded="false" aria-controls="collapseSolution9">
   <h4 class="accordion-header" id="headingSolution9"> Show me the solution </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb33">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1323,7 +1323,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1346,7 +1346,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/08-plot.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2024-05-07",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/404.html b/instructor/404.html
index 0c6699e5..ebace5a6 100644
--- a/instructor/404.html
+++ b/instructor/404.html
@@ -364,7 +364,7 @@ <h1>Page not found</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -386,8 +386,8 @@ <h1>Page not found</h1>
   "url": "https://datacarpentry.github.io/astronomy-python/instructor/404.html",
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/404.html",
   "dateCreated": "2020-05-11",
-  "dateModified": "2024-09-03",
-  "datePublished": "2024-09-03"
+  "dateModified": "2024-09-10",
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index f81bad81..e49984f1 100644
--- a/instructor/CODE_OF_CONDUCT.html
+++ b/instructor/CODE_OF_CONDUCT.html
@@ -382,7 +382,7 @@ <h1>Contributor Code of Conduct</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -405,7 +405,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/CODE_OF_CONDUCT.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index b4f11815..61c96d8d 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -430,7 +430,7 @@ <h1>Licenses</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -453,7 +453,7 @@ <h1>Licenses</h1>
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/LICENSE.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/aio.html b/instructor/aio.html
index f6384a56..95249c4d 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -1630,7 +1630,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb13">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1749,7 +1749,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb19">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1934,7 +1934,7 @@ <h3 class="callout-title">Exercise (10 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb29">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -3281,7 +3281,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>Previously, we ran a query on the Gaia server, downloaded data for
 roughly 140,000 stars, transformed the coordinates to the GD-1 reference
@@ -3369,7 +3369,7 @@ <h3 class="callout-title">Exercise (10 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The most noticeable issue is that some of the parallax values are
 negative, which seems non-physical.</p>
@@ -3843,7 +3843,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb44">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4011,7 +4011,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>Previously, we ran a query on the Gaia server, downloaded data for
 roughly 140,000 stars, and saved the data in a FITS file. We then
@@ -4171,7 +4171,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb8">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4315,7 +4315,7 @@ <h3 class="callout-title">Exercise (10 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb18">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4356,7 +4356,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb19">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4683,7 +4683,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>In the previous episode, we define a rectangle around stars in GD-1
 in spatial coordinates and in proper motion which we transformed into
@@ -5358,7 +5358,7 @@ <h3 class="callout-title">Exercise (15 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb45">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -5525,7 +5525,7 @@ <h3 class="callout-title">Exercise (15 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb54">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -5907,7 +5907,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
 <div class="accordion-body">
 <p>In the previous episode, we selected stars in GD-1 based on proper
 motion and downloaded the spatial, proper motion, and photometry
@@ -5969,7 +5969,7 @@ <h3 class="callout-title">A slight detour for non-domain experts</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler2" aria-expanded="false" aria-controls="collapseSpoiler2">
   <h3 class="accordion-header" id="headingSpoiler2">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> The color magnitude diagram of GD-1 and foreground stars </h3>
 </button>
-<div id="collapseSpoiler2" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler2" aria-labelledby="headingSpoiler2">
+<div id="collapseSpoiler2" class="accordion-collapse collapse" aria-labelledby="headingSpoiler2" data-bs-parent="#accordionSpoiler2">
 <div class="accordion-body">
 <p>As a pathologist can easily point to tumor on a biopsy slide, so too
 can astronomers who study stellar populations see two stellar main
@@ -6360,7 +6360,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb30">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -6469,7 +6469,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb38">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -6704,7 +6704,7 @@ <h3 class="callout-title">Starting from this episode</h3>
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Read me </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>In the previous episode, we selected stars in GD-1 based on proper
 motion and downloaded the spatial, proper motion, and photometry
@@ -6802,7 +6802,7 @@ <h3 class="callout-title">Exercise (10 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>No figure is perfect, and everyone can be a critic. Here are some
 topics that could come up in this discussion:</p>
@@ -6883,7 +6883,7 @@ <h3 class="callout-title">Exercise (20 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb4">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7011,7 +7011,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb7">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7068,7 +7068,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb11">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7189,7 +7189,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5"> Show me the solution </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb17">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7308,7 +7308,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6"> Show me the solution </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <p>Without <code>tight_layout</code> the space between the panels is too
 small. In this situation, the titles from the lower plots overlap with
@@ -7375,7 +7375,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7"> Show me the solution </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb24">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7503,7 +7503,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8"> Show me the solution </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb32">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7535,7 +7535,7 @@ <h3 class="callout-title">Exercise (5 minutes)</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution9" aria-expanded="false" aria-controls="collapseSolution9">
   <h4 class="accordion-header" id="headingSolution9"> Show me the solution </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb33">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7632,7 +7632,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer>
 </div> <!-- / div.container -->
@@ -7655,8 +7655,8 @@ <h3 class="callout-title">Key Points</h3>
   "url": "https://datacarpentry.github.io/astronomy-python/instructor/aio.html",
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/aio.html",
   "dateCreated": "2020-05-11",
-  "dateModified": "2024-09-03",
-  "datePublished": "2024-09-03"
+  "dateModified": "2024-09-10",
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/calculating_MIST_isochrone.html b/instructor/calculating_MIST_isochrone.html
index 73cb7b16..c8772051 100644
--- a/instructor/calculating_MIST_isochrone.html
+++ b/instructor/calculating_MIST_isochrone.html
@@ -601,7 +601,7 @@ <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"><
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -624,7 +624,7 @@ <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"><
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/calculating_MIST_isochrone.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/discuss.html b/instructor/discuss.html
index 510b3f31..bdf797c0 100644
--- a/instructor/discuss.html
+++ b/instructor/discuss.html
@@ -375,7 +375,7 @@ <h1>Discussion</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -398,7 +398,7 @@ <h1>Discussion</h1>
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/discuss.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/images.html b/instructor/images.html
index f466de5d..9765ee45 100644
--- a/instructor/images.html
+++ b/instructor/images.html
@@ -538,7 +538,7 @@ <h3 id="08-plot-figure-6">Figure 6</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer>
 </div> <!-- / div.container -->
@@ -561,8 +561,8 @@ <h3 id="08-plot-figure-6">Figure 6</h3>
   "url": "https://datacarpentry.github.io/astronomy-python/instructor/images.html",
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/images.html",
   "dateCreated": "2020-05-11",
-  "dateModified": "2024-09-03",
-  "datePublished": "2024-09-03"
+  "dateModified": "2024-09-10",
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/index.html b/instructor/index.html
index d385689e..31f6d603 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -623,7 +623,7 @@ <h3 class="callout-title">Why didn’t the imports work?</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -645,8 +645,8 @@ <h3 class="callout-title">Why didn’t the imports work?</h3>
   "url": "https://datacarpentry.github.io/astronomy-python/instructor/index.html",
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/index.html",
   "dateCreated": "2020-05-11",
-  "dateModified": "2024-09-03",
-  "datePublished": "2024-09-03"
+  "dateModified": "2024-09-10",
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index be6f1119..90ca12ce 100644
--- a/instructor/instructor-notes.html
+++ b/instructor/instructor-notes.html
@@ -1009,7 +1009,7 @@ <h3 id="episode-8-visualization">Episode 8: Visualization<a class="anchor" aria-
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer>
 </div> <!-- / div.container -->
@@ -1032,8 +1032,8 @@ <h3 id="episode-8-visualization">Episode 8: Visualization<a class="anchor" aria-
   "url": "https://datacarpentry.github.io/astronomy-python/instructor/instructor-notes.html",
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/instructor-notes.html",
   "dateCreated": "2020-05-11",
-  "dateModified": "2024-09-03",
-  "datePublished": "2024-09-03"
+  "dateModified": "2024-09-10",
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/key-points.html b/instructor/key-points.html
index 1f9d1180..db7eb756 100644
--- a/instructor/key-points.html
+++ b/instructor/key-points.html
@@ -518,7 +518,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer>
 </div> <!-- / div.container -->
@@ -541,8 +541,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://datacarpentry.github.io/astronomy-python/instructor/key-points.html",
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/key-points.html",
   "dateCreated": "2020-05-11",
-  "dateModified": "2024-09-03",
-  "datePublished": "2024-09-03"
+  "dateModified": "2024-09-10",
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/link-list.html b/instructor/link-list.html
index 97da368d..21b8ce55 100644
--- a/instructor/link-list.html
+++ b/instructor/link-list.html
@@ -530,7 +530,7 @@ <h1>Link List</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -553,7 +553,7 @@ <h1>Link List</h1>
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/link-list.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/prereqs.html b/instructor/prereqs.html
index 2134c144..a8cad624 100644
--- a/instructor/prereqs.html
+++ b/instructor/prereqs.html
@@ -433,7 +433,7 @@ <h3 id="python-skills">Python skills<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -456,7 +456,7 @@ <h3 id="python-skills">Python skills<a class="anchor" aria-label="anchor" href="
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/prereqs.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/profiles.html b/instructor/profiles.html
index 42681cd6..3bd319e1 100644
--- a/instructor/profiles.html
+++ b/instructor/profiles.html
@@ -332,7 +332,7 @@ <h1>Learner Profiles</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -354,8 +354,8 @@ <h1>Learner Profiles</h1>
   "url": "https://datacarpentry.github.io/astronomy-python/instructor/profiles.html",
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/profiles.html",
   "dateCreated": "2020-05-11",
-  "dateModified": "2024-09-03",
-  "datePublished": "2024-09-03"
+  "dateModified": "2024-09-10",
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/instructor/reference.html b/instructor/reference.html
index c72ef4e3..698209cd 100644
--- a/instructor/reference.html
+++ b/instructor/reference.html
@@ -373,7 +373,7 @@ <h1>Reference</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -396,7 +396,7 @@ <h1>Reference</h1>
   "identifier": "https://datacarpentry.github.io/astronomy-python/instructor/reference.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/key-points.html b/key-points.html
index 6f89f3cc..7fcc6503 100644
--- a/key-points.html
+++ b/key-points.html
@@ -510,7 +510,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer>
 </div> <!-- / div.container -->
@@ -533,8 +533,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://datacarpentry.github.io/astronomy-python/key-points.html",
   "identifier": "https://datacarpentry.github.io/astronomy-python/key-points.html",
   "dateCreated": "2020-05-11",
-  "dateModified": "2024-09-03",
-  "datePublished": "2024-09-03"
+  "dateModified": "2024-09-10",
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/link-list.html b/link-list.html
index 78b7073f..9af60961 100644
--- a/link-list.html
+++ b/link-list.html
@@ -528,7 +528,7 @@ <h1>Link List</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -551,7 +551,7 @@ <h1>Link List</h1>
   "identifier": "https://datacarpentry.github.io/astronomy-python/link-list.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/pkgdown.yml b/pkgdown.yml
index aab93756..9042b460 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,4 +2,4 @@ pandoc: 3.1.11
 pkgdown: 2.1.0
 pkgdown_sha: ~
 articles: {}
-last_built: 2024-09-03T00:39Z
+last_built: 2024-09-10T00:41Z
diff --git a/prereqs.html b/prereqs.html
index 1b26dc48..0a2174d9 100644
--- a/prereqs.html
+++ b/prereqs.html
@@ -431,7 +431,7 @@ <h3 id="python-skills">Python skills<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -454,7 +454,7 @@ <h3 id="python-skills">Python skills<a class="anchor" aria-label="anchor" href="
   "identifier": "https://datacarpentry.github.io/astronomy-python/prereqs.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/profiles.html b/profiles.html
index 08da7c94..61402f92 100644
--- a/profiles.html
+++ b/profiles.html
@@ -332,7 +332,7 @@ <h1>Learner Profiles</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -354,8 +354,8 @@ <h1>Learner Profiles</h1>
   "url": "https://datacarpentry.github.io/astronomy-python/profiles.html",
   "identifier": "https://datacarpentry.github.io/astronomy-python/profiles.html",
   "dateCreated": "2020-05-11",
-  "dateModified": "2024-09-03",
-  "datePublished": "2024-09-03"
+  "dateModified": "2024-09-10",
+  "datePublished": "2024-09-10"
 }
 
   </script><script>
diff --git a/reference.html b/reference.html
index 6b0cff85..4efa06bf 100644
--- a/reference.html
+++ b/reference.html
@@ -371,7 +371,7 @@ <h1>Reference</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.6" class="external-link">sandpaper (0.16.6)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -394,7 +394,7 @@ <h1>Reference</h1>
   "identifier": "https://datacarpentry.github.io/astronomy-python/reference.html",
   "dateCreated": "2020-05-11",
   "dateModified": "2023-05-15",
-  "datePublished": "2024-09-03"
+  "datePublished": "2024-09-10"
 }
 
   </script><script>