On its first sol on the red planet, the mission sent home images of a dusty landscape, a lander selfie, and a wide shot of Mars from space.
Hayabusa2 is the first mission to deploy mobile robots onto an asteroid.
"That was as close as you could get to exploring Mars on Earth."
Scientists think they saw vapour plumes spewing from its surface.
OSIRIS-REx will help us defend ourselves against future asteroid attacks.