The European Space Agency’s (ESA) Mars Express orbiter may be old — it launched back in 2003 — but it’s still uncovering new clues. Equipped with a new software upgrade to its Mars Advanced Radar for ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Mars is lucky enough to have two confirmed moons, and both have some ...

Jackson Ryan was CNET's science editor, and a multiple award-winning one at that. Earlier, he'd been a scientist, but he realized he wasn't very happy sitting at a lab bench all day. Science writing, ...

The High Resolution Imaging Science Experiment, run from The University of Arizona, has produced a new color stereo view of Phobos, the larger and inner of Mars’ two tiny moons. The HiRISE camera ...

The doomed Martian moon Phobos, which is on a slow death spiral above the Red Planet, may hold some secrets about how Mars was formed. The moon's orbit of Mars — gradually degrading over the eons — ...

The Martian moon Phobos orbits through a stream of charged atoms and molecules that flow off the Red Planet’s atmosphere, new research shows. Many of these charged particles, or ions, of oxygen, ...

(CNN) — Mars has long been a point of fascination for scientists as they try to uncover the planet’s past and determine if it ever supported life. It turns out that Phobos, one of the Martian moons, ...

Previously unpublished photos of Mars' moon Phobos hint that the mysterious satellite may actually be a trapped comet — or perhaps just a piece of one, along with its twin moon Deimos. When you ...

Phobos appears silhouetted against Mars between the colossal Tharsis volcanic province and the canyoned region spanning ...