The Mars Moons eXploration spacecraft will fire its thrusters to maneuver into orbit around Mars (depicted in this digital ...

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, ...

The moon Phobos has a mysterious origin but a certain expiration date. Phobos, one of Mars' moons, has an uncertain origin, but its surface grooves show that tidal forces are pulling it apart. In time ...

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 ...

The long, shallow grooves lining the surface of Phobos are likely early signs of the structural failure that will ultimately destroy this moon of Mars. Orbiting a mere 3,700 miles (6,000 kilometers) ...

The two small moons of Mars, Phobos (about 22km in diameter) and Deimos (about 13km in diameter), have been puzzling scientists for decades, with their origin remaining a matter of debate. Some have ...

NASA's Perseverance Mars rover has recently captured a striking image of Phobos, one of the Red Planet's two moons, as it passed in front of the sun last month. The remarkable event observed on ...

A new explanation for the strange grooves on the surface of the martian moon Phobos suggests that the entire satellite already shows signs of how it will eventually be destroyed. This article was ...

Add Yahoo as a preferred source to see more of our stories on Google. On March 27, 1989, the Soviet Union's Phobos 2 mission to Mars' moons ended in failure. [‘On This Day in Space’ Video Series on ...