Mars, the fourth planet from the Sun, is a subject of fascination for astronomers. Though significantly smaller than Earth, this red-hued world has two moons that continue to spark debate among ...

Mars’ moons could be the remains of an ill-starred asteroid that got too close to the Red Planet. A shredded asteroid origin could help explain mysterious features of the small, odd-shaped moons, ...

New high-resolution images of tiny Deimos taken by an Emirati orbiter suggest that it may not be the captured asteroid that scientists once said it was. By Jonathan O’Callaghan Deimos, the smaller of ...