<p>Neil Armstrong  landing on the moon animation. Image used:
</p>
<a href="//commons.wikimedia.org/wiki/File:Neil_Armstrong_On_The_Moon_-_GPN-2000-001209.jpg" title="File:Neil Armstrong On The Moon - GPN-2000-001209.jpg">File:Neil_Armstrong_On_The_Moon_-_GPN-2000-001209.jpg</a>
NASA, <a href="//commons.wikimedia.org/wiki/User:Rogueassasin123" title="User:Rogueassasin123">User:Rogueassasin123</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>