A 2010 analysis of imagery from NASA’s Lunar Reconnaissance Orbiter (LRO) found that the moon shriveled like a raisin as its interior cooled, leaving behind thousands of cliffs called thrust faults on the moon’s surface.
![](https://3c1703fe8d.site.internapcdn.net/newman/csz/news/tmb/2019/themoonisqua.jpg)
Source:
https://phys.org/news/2019-05-moon-quaking.html