Out past Neptune are countless small icy and rocky bodies called Trans-Neptunian Objects (TNOs), and many of these have moons ...

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

The sheer number of objects suggests scientists will soon have to grapple with what counts as a moon versus what’s just a ...

The results of Hera's flyby could ultimately tell us whether Deimos is a captured asteroid or made from debris from a giant ...

Our planet's closest and brightest neighbor will pass approximately between the Earth and sun this week, in what's called an ...

While the space race of the 1960s was a contest between two rival superpowers, today it is being fought by private space ...

"As soon as we can get it going, we would want to start having some type of presence on the moon sustainably," she told ...

The Red Planet and its tiny moon Deimos were recorded at a very near distance as the asteroid-chasing spacecraft completed a ...

The Red Planet and its tiny moon Deimos were recorded at a very near ... concluding their unexpectedly long stay in space. Trump administration officials said the company donated the internet ...

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

Turns out, there’s a lot more floating around the planet Saturn than those famous rings. Space scientists announced last week ...

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