5 ms·
Mare Tranquillitatis pit solves these problems. And there are likely many more caves that haven't been discovered yet. https://en.wikipedia.org/wiki/Mare_Tranq
by drclau 2y ago
Mare Tranquillitatis pit solves these problems. And there are likely many more caves that haven't been discovered yet.
https://en.wikipedia.org/wiki/Mare_Tranquillitatis_pit https://en.wikipedia.org/wiki/Mare_Tranquillitatis_pit