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  1. Phobos (moon) - Wikipedia

    Phobos (/ ˈfoʊbəs /) is the innermost and larger of the two natural satellites of Mars, the other being Deimos. The two moons were discovered in 1877 by American astronomer Asaph Hall. Phobos is …

  2. Phobos | Moon of Mars, Orbit, Ellipsoid Shape, Diameter, Stickney ...

    Phobos, the inner and larger of Mars ’s two moons. It was discovered telescopically with its companion moon, Deimos, by the American astronomer Asaph Hall in 1877. Phobos is a small irregular rocky …

  3. Phobos - NASA Science

    Nov 3, 2024 · Phobos is the larger of Mars' two moons. It orbits Mars three times a day, and is so close to the planet's surface that in some locations on Mars it cannot always be seen.

  4. Phobos: Facts About the Doomed Martian Moon | Space

    Dec 8, 2017 · In Greek mythology, Phobos was one of the sons of the god of war Ares (Mars to the Romans). The twin sons attended their father in battle. Phobos means fear (as in phobia), while …

  5. 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 3,700 miles …

  6. Phobos - NASA

    MAVEN Observes Mars Moon Phobos in the Mid- and Far-Ultraviolet Multimedia Go To Galleries

  7. Phobos | Moon of Mars | Solar System | GO ASTRONOMY

    Phobos (pronounced FOH-buhs) is one of two moons of the planet Mars. Phobos is the larger innermost moon, and is thought to be a rubble pile held together by a dark thin crust. In 30 to 50 million years, it …

  8. Phobos (Moon) 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.

  9. Phobos - The Nine Planets

    Sep 25, 2019 · Phobos (“FOH bus”) is the larger and innermost of Mars’ two moons. Phobos is closer to its primary than any other moon in the solar system, less than 6000 km above the surface of Mars.

  10. Mars Moons: Facts - NASA Science

    Nov 3, 2024 · Mars has two moons, Phobos and Deimos. Both are thought to be captured asteroids, or debris from early in the formation of our solar system.