A space probe named Hera captured images of Mars' small Deimos moon while on a mission to examine an asteroid.

Images from the Hera mission show the object in remarkable detail — a small island gliding above the crater-scarred Martian ...

Like our moon, Deimos is tidally locked to Mars, meaning the same side always faces the planet—the only side visible to ...

ESA's Hera spacecraft inaugurated use of its science instruments to image the smaller of the planet's two moons, Deimos.

Dimorphos double asteroid system, has performed a close flyby of Mars, receiving a crucial gravitational slingshot, testing ...

"If the moon and a planet are near Castor and Pollux you have an impressive show." From our earthly perspective, the moon and Mars will appear closest to each other at around 8 p.

While the car-sized spacecraft flew around the Mars system, flight controllers on Earth temporarily lost communication with ...

The Hera probe has swung around Mars, using the planet’s gravitational pull to fling itself toward its asteroid target.

and Mars has two. Uranus and Neptune have 28 and 16 known moons, respectively. Despite not technically being a planet anymore, Pluto has five moons. The 128 new Saturnian satellites are all ...

The number of known moons in our Solar System has been rising for centuries, but astronomers say it has probably peaked – for ...

On the way to investigate the scene of a historic asteroid collision, a European spacecraft swung by Mars and captured rare ...