Didymos asteroid ejecting rocks into space due to rapid spin.

The asteroid Didymos, which is being studied for NASA's DART and the European Space Agency's Hera mission, has been found to be spinning very quickly, completing one full rotation every 2 hours and 16 minutes. This causes rocks and dust to lift off the surface and move into orbit, making Didymos a spinning asteroid that is spewing out constant materials in its vicinity and beyond. The elements ejected by Didymos either reach orbit or are deposited onto its moon Dimorphos, and some may even escape the system.