A moon rock brought back over 50 years ago by the Apollo 17 mission has been connected with the birth of the Sea of Serenity — if true, it means the lunar mare formed hundreds of millions of years earlier than thought.

A tiny Apollo 17 moon rock is unlocking a secret lunar history

Source: space
Source Link: https://www.space.com/astronomy/moon/a-tiny-apollo-17-moon-rock-is-unlocking-a-secret-lunar-history