Hmmm caves on the moon?
I never thought of that. Why wouldn't there be caves on the Moon? What about Moon geology would prevent caves from forming? Moon geology??? I don't think that's the proper term since geology is referring to the earth.
Ha I decided to look it up, and it is proper to use geology when referring to the Moon:
From Webster on line dictionary.
Geology:
1 a : a science that deals with the history of the earth and its life especially as recorded in rocks b : a study of the solid matter of a celestial body (as the moon)