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 satellite to a planet. It orbits Mars much faster than Mars rotates and completes an orbit in just 7 hours and 39 minutes.
Phobos - NASA Science
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 that in some locations on Mars it cannot always be seen.
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 photo of the larger...
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 locations on Mars it cannot always be seen.
Phobos | Orbit & Surface Features | Britannica
Mar 5, 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 (370 miles). The most prominent feature is the impact crater Stickney, which is …
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 (6,000 kilometers) above the surface of Mars, Phobos is closer to …
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 kilometers (14 miles) in diameter, making it larger than its companion moon Deimos.
Phobos - NASA
NASA Cameras on Blue Ghost Capture First-of-its-Kind Moon Landing Footage. article 9 hours ago. 2 min read. NASA Continues BioNutrients Space-Fermented Food Research. article 2 days ago. ... NASA Orbiter Steers Clear of Mars Moon Phobos. Article. 2 Min Read. MAVEN Observes Mars Moon Phobos in the Mid- and Far-Ultraviolet. Multimedia Go To ...
Time-Lapse of Phobos in Orbit Around Mars - Science@NASA
Jul 20, 2017 · Over the course of 22 minutes, Hubble snapped 13 separate exposures of the little Martian moon. Phobos completes an orbit in just 7 hours and 39 minutes, which is faster than Mars rotates. Rising in the Martian west, it runs three laps around the Red Planet in the course of one Martian day, which is about 24 hours and 40 minutes. ...
Phobos (moon) - Wikiwand
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 satellite to a planet. It orbits Mars much faster than Mars rotates and completes an orbit in just 7 hours and 39 minutes.