The irregular shapes and orbits of Mars’s two small moons, Phobos and Deimos, have long been a subject of scientific curiosity. Recent research suggests that these moons may have originated from ...

Mars has two moons, but they're not quite like Earth's moon. That's raised a lot of questions about where they're from, ...

One summer night in 1877, American astronomer Asaph Hall was looking through his telescope in Washington, D.C. Mars was at its closest point to Earth in its orbit, and Hall had one question on his ...

The smaller of Mars' two moons shines in the sky before sunrise on the Red Planet, as captured by NASA's Perseverance rover. NASA's Perseverance rover captured this pre-dawn view of Mars' moon Deimos ...

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 ...