Dramatic change in the moon’s tilt may help us trace the origin of water on Earth

Astronomers have found evidence that the axis that the moon spins around shifted billions of years ago due to changes in the moon's internal structure. The research could help explain the strange distribution of water ice near the lunar poles.... It could also help us pinpoint craters that have been shadowed for so long that they contain water ice from early in the solar system. By Mahesh Anand.

https://theconversation.com