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.

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, gouged and nearly shattered by a giant impact crater and beaten by thousands of meteorite impacts, is on a collision course with Mars. Phobos is the larger of Mars' two moons and is 17 x 14 x 11 miles (27 by 22 by 18 kilometers) in diameter.

Nov 5, 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. Phobos is nearing Mars at a rate of six feet (1.8 meters) every hundred years.

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 …

Nov 3, 2024 · Mars’ moons are among the smallest in the solar system. Phobos is a bit larger than Deimos, and orbits only 3,700 miles (6,000 kilometers) above the Martian surface. No known moon orbits closer to its planet.

Jan 24, 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 …

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 (6,000 km) above the surface of the red planet …

3 days ago · Immerse yourself in the mesmerizing atmosphere of Phobos, Mars' enigmatic moon, as observed from a futuristic spaceship observation deck. This video captures...

1 day ago · "In 1998, the Mars Global Surveyor (MGS) spacecraft made four passes by the innermost of the two Martian satellites, Phobos. The fourth pass, made just over 5 years ago on 12 September 1998 ...