
Phobos (moon) - Wikipedia
Phobos is a small, irregularly shaped object with a mean radius of 11 km (7 mi). It orbits 6,000 km (3,700 mi) from the Martian surface, closer to its primary body than any other known natural …
Phobos - Science@NASA
Nov 3, 2024 · Phobos is the larger of Mars' two moons and is 17 x 14 x 11 miles (27 by 22 by 18 kilometers) in diameter. It orbits Mars three times a day, and is so close to the planet's surface …
Phobos: Facts About the Doomed Martian Moon | Space
Dec 8, 2017 · Phobos means fear (as in phobia), while Deimos means flight (especially in the sense of fleeing after a defeat), according to NASA. NASA's Mars rover Curiosity snapped this …
Mars’ Moon Phobos is Slowly Falling Apart - NASA
Nov 10, 2015 · 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 …
In Depth | Phobos – NASA Solar System Exploration
Phobos is the larger of Mars' two moons and is 17 x 14 x 11 miles (27 by 22 by 18 kilometers) in diameter. It orbits Mars three times a day, and is so close to the planet's surface that in some …
Phobos | Orbit & Surface Features | Britannica
Apr 2, 2025 · Phobos, the inner and larger of the two moons of Mars, in a composite of photographs taken by the Viking 1 orbiter in October 1978 from a distance of about 600 km …
Phobos: Distance, Differences, Facts, Size, Surface
Aug 26, 2024 · What is Phobos moon? Phobos is one of the two natural satellites of Mars, discovered by American astronomer Asaph Hall in 1877. Phobos measures approximately 22 …
Phobos: Facts about Mars' Moon, Phobos - The Planets
Phobos (pronounced FOH bus) is the largest of the two moons which orbit the planet Mars. It is also closer to it’s primary than any other satellite in the solar system. Phobos travels only …
Phobos Moon Facts - Space Facts
Phobos is one of the two moons of Mars. It is the larger of the two moons, and is heavily cratered and appears to have grooves and streaks of material along its sides. Phobos size compared to …
Phobos (moon) - Simple English Wikipedia, the free encyclopedia
Phobos is the larger of the two moons, and is only 27 kilometers in diameter. This is about as far as a car can travel on the highway in 15 minutes. It is covered with craters, as Earth 's moon …