Phobos is the larger of the two and orbits extremely close to Mars - just 6,000 kilometers above the surface. That's closer than any other moon to its planet in the entire solar system.

Washington: NASA will prioritize sending astronauts to Mars, President Donald Trump's pick to lead the US space agency said Wednesday, shifting focus beyond a long-planned return to the Moon ...

A space probe flying past Mars captured images of the red planet's small, mysterious moon. The space probe, named Hera, was launched on Oct. 7, 2024, and is on a mission to gather close-up data ...

The moons of Mars are not easy to explain. Both are small — Phobos is 16 miles (26km) across at its widest point, whereas, Deimos is just 10 miles (16km) — and lumpy.

Something’s not quite right about the moons of Mars. They are too small — Phobos is 17 miles across, and Deimos is a mere nine miles in length. And they aren’t round, but lumpy, misshaped ...

Studying these moons could help understand moons around extrasolar planets, too (SN: 1/13/22). “Even if this isn’t the way Mars’ moons formed in particular, it could be the way moons form ...

On Mars, as on Earth, the gravity of a moon can create tides. However, instead of lifting water, the ancient, massive moon named Nerio could have raised magma, the molten rock beneath the surface.

Phobos is the largest of Mars’ two moons, the other one being Deimos. Scientists are uncertain about their history. They could be a pair of captured main-belt asteroids, two lobes of what once was a ...

Previously unpublished photos of Mars' moon Phobos hint that the mysterious satellite may actually be a trapped comet — or perhaps just a piece of one, along with its twin moon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

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.

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.

The moons of Mars have been enigmas since their discovery. Phobos has a low orbit, about 3,700 miles (6,000 km) above the martian surface, and it zips across the martian sky in just four hours.