Samples of Ryugu returned to Earth by the Hayabusa2 spacecraft show that the asteroid bears the scars of a recent bombardment by tiny space rocks.

Famous asteroid Ryugu may have been bombarded by a swarm of tiny space rocks 1,000 years ago

Source: space
Source Link: https://www.space.com/astronomy/asteroids/famous-asteroid-ryugu-may-have-been-bombarded-by-a-swarm-of-tiny-space-rocks-1-000-years-ago