“Here, we use cosmogenic noble gases and radionuclides to suggest that the upper metre of Bennu’s regolith has been exposed to cosmic rays for 2–7 million years, consistent with remote sensing observations indicating that the asteroid’s surface is dynamic and regularly modified by mass movement.”

https://www.nature.com/articles/s41561-025-01745-w

#PlanetaryScience #Asteroids #SpaceWeathering

After a long wait, the "New Views of the Moon 2" book is finally published 🎉

This volume reviews the current state of lunar science in 19 chapters. Topics include the formation of the #Moon, #differentiation, #ImpactCratering, #volcanism, #tectonics, #dynamos, #magnetism, #volatiles, #SpaceWeathering, and the lunar #exosphere.

Check out the entire volume online:
https://pubs.geoscienceworld.org/rimg/issue/89/1