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, ...

Previously unpublished photos of Mars' moon Phobos hint that the mysterious satellite may actually be a trapped comet — or perhaps just a piece of one, along with its twin moon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

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 ...

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) ...

Japan’s space agency (JAXA) is sending a mission to travel to Mars which will survey the Red Planet’s two moons, Phobos and Deimos. The spacecraft will explore both moons and collect a sample of ...

On March 27, 1989, the Soviet Union's Phobos 2 mission to Mars' moons ended in failure. But the whole mission was definitely not a failure. Phobos 2 arrived in Mars orbit two months earlier and had ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. As Phobos, one of ...

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 ...

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

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 ...