Hera spacecraft captured rare images of Deimos, one of Mars’ two moons, from 621 miles away while en route to the asteroid moonlet Dimorphos. Like our moon, Deimos is tidally locked to Mars, meaning the same side always faces the planet—the only side visible to rovers on the Martian surface.

Dimorphos double asteroid system, has performed a close flyby of Mars, receiving a crucial gravitational slingshot, testing some of its instruments, and gaining new images of Mars' little-seen moon Deimos,