An image of Calder Hansen's proposed flag of Mars. He has placed it in the public domain. See:<a rel="nofollow" class="external free" href="https://www.flagofmars.com/">https://www.flagofmars.com/</a>
Calder Hansen
<a rel="nofollow" class="external free" href="https://www.flagofmars.com/">https://www.flagofmars.com/</a>