chore: enhance comments on third-party resources

resources.html

 ---
 title: Resources
 date: 2016-11-17 17:28:47 +01:00
-modified: 2023-05-21 09:32:59 +02:00
+modified: 2023-05-21 09:44:14 +02:00
 layout: default_orekit
 ---
 
@@ -50,16 +50,20 @@ layout: default_orekit
 <p class="h3"><span class="fa fa-picture-o"></span> STS103-726-081 <small>- Hubble Space Telescope (HST) photographed from the space shuttle Discovery</small></p>
 <p>Copyright &copy; 1999 - NASA (National Aeronautics and Space Administration)<br/>
   License: <a href="http://en.wikipedia.org/wiki/Public_domain">Public domain</a><br/>
-  Website: NASA had published this photograph on its XXX site, which it retired in 2021. The image has not
-  been republished on its <a href="https://images.nasa.gov/">new gallery</a>, but it has been uploaded to
-  <a href="https://commons.wikimedia.org/wiki/File:The_Hubble_Space_Telescope_(HST)_floats_gracefully_above_the_blue_Earth_after_release_from_Discovery%27s_robot_arm_after_a_successful_servicing_mission.jpg">Wikipedia's Commons site</a>.</p>
+  Website: <a href="https://commons.wikimedia.org/wiki/File:The_Hubble_Space_Telescope_(HST)_floats_gracefully_above_the_blue_Earth_after_release_from_Discovery%27s_robot_arm_after_a_successful_servicing_mission.jpg">https://commons.wikimedia.org/wiki/File:The_Hubble_Space_Telescope_(HST)_floats_gracefully_above_the_blue_Earth_after_release_from_Discovery%27s_robot_arm_after_a_successful_servicing_mission.jpg</a><br/>
+  Note: NASA had originally published this photograph on the spaceflight.nasa.gov website,
+  which it retired in 2021. As of April 2023, this photograph still does not appear in
+  <a href="https://images.nasa.gov/">NASA's new gallery</a>, but can be found on the
+  Wikimedia Commons site.</p>
 
 <p class="h3"><span class="fa fa-picture-o"></span> S135-E-011864 <small>- International Space Station (ISS) photographed from the space shuttle Atlantis</small></p>
 <p>Copyright &copy; 2011 - NASA (National Aeronautics and Space Administration)<br/>
   License: <a href="http://en.wikipedia.org/wiki/Public_domain">Public domain</a><br/>
-  Website: NASA had published this photograph on its XXX site, which it retired in 2021. The image has not
-  been republished on its <a href="https://images.nasa.gov/">new gallery</a>, but it has been uploaded to
-  <a href="https://commons.wikimedia.org/wiki/File:STS-135_final_flyaround_of_ISS_3.jpg">Wikipedia's Commons site</a>.</p>
+  Website: <a href="https://commons.wikimedia.org/wiki/File:STS-135_final_flyaround_of_ISS_3.jpg">https://commons.wikimedia.org/wiki/File:STS-135_final_flyaround_of_ISS_3.jpg</a><br/>
+  Note: NASA had originally published this photograph on the spaceflight.nasa.gov website,
+  which it retired in 2021. As of April 2023, this photograph still does not appear in
+  <a href="https://images.nasa.gov/">NASA's new gallery</a>, but can be found on the
+  Wikimedia Commons site.</p>
 
 <p class="h3"><span class="fa fa-picture-o"></span> Himalayan Topography (based on ASTER data)</p>
 <p>Copyright &copy; 2009 - NASA (National Aeronautics and Space Administration), image by Robert Simmon<br/>