[Monahammer]

Originally Posted by troutman

If an ancient Earth civilization made it to the moon, I think there would be evidence.

https://www.space.com/14740-footprints-moon.html


How was the Moon Monolith discovered in 2001: A Space Odyssey?

https://2001.fandom.com/wiki/Monolith

Conversely, the moon is pretty uninteresting for habitation purposes (especially if you're an aquatic creature)