Over the weekend, Joe Rogan, conspiracy theorists, and Elon Musk got excited about a "square structure" on Mars, photographed ...

Some of the mysterious grooves on the surface of Mars’ moon Phobos are the result of debris ejected by impacts eventually falling back onto the surface to form linear chains of craters, according to a ...

"It's the first time an image of the two celestial bodies have been captured together from the surface of Mars." When you purchase through links on our site, we may earn an affiliate commission.

A new study bolsters the idea that strange grooves crisscrossing the surface of the Martian moon Phobos were made by rolling boulders blasted free from an ancient asteroid impact. The research, ...

Phobos is the larger and innermost of Mars' two moons, and it's a fascinating celestial body. It's small, irregularly shaped, and orbiting just about 6,000 kilometers above the surface of the Red ...