Mars has two small, funky-looking moons with strange orbits, and they may suggest that the red planet once had rings, like some of the larger planets in our solar system. The two lumpy moons ...

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.

MANY MOONS AGO Mars’ moons, Deimos (left) and Phobos (right), might have formed out of rocks blasted off the Red Planet by a large asteroid, a new study suggests.

The origins of Mars's moons have long puzzled scientists. Two main hypotheses have been proposed: that Phobos and Deimos are captured asteroids or that they formed from debris created by a massive ...

Japan is ready to mine Mars’ largest moon after successfully completing all of the compulsory “space contamination” paperwork. Japanese space agency JAXA hopes to travel to the Ma… ...

Do Mars’s Moons Have Any Distinguishing Features? Between the two of them, there’s just one. With a diameter of roughly 5.6 miles, Phobos’ largest crater, Stickney, ...

Mars moons pictured together for first time . ... (the small moon in the background). When the picture was taken, Phobos was 7,332 miles (11,800 kilometers) away from the spacecraft, ...

Mars' two moons, Phobos and Deimos, are small, irregular, but orbit in the same equatorial plane as the red planet. Although they've long been thought to be captured asteroids, those orbits would be ...

Although both moons orbit Mars much closer than our own Moon orbits Earth, they also are very small: Phobos measures only 12 miles (19 kilometers) across and Deimos is half that.

Mars has two small, funky-looking moons with strange orbits, and they may suggest that the red planet once had rings, like some of the larger planets in our solar system.