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Deimos is the smaller and outer of the two natural satellites of Mars, named after the Greek god of dread. It was discovered in 1877 by Asaph Hall and has a mean radius of 6.2 km and a highly porous regolith.
Deimos is the smaller and less irregular of Mars' two moons, orbiting the planet every 30 hours. Learn about its craters, regolith, color, origin and name from NASA's website.
The moons of Mars may have started with a huge collision with a protoplanet one third the mass of Mars that formed a ring around Mars. The inner part of the ring formed a large moon. Gravitational interactions between this moon and the outer ring formed Phobos and Deimos.
24 kwi 2023 · The moonlet Deimos is made of the same type of material as Mars, the latest observations suggest. Credit: Emirates Mars Mission. The United Arab Emirates’ space probe Hope has taken the first...
Tematy dnia
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. Phobos is the larger of Mars' two moons.
Deimos is the smaller and outer of Mars's two moons, discovered by Asaph Hall in 1877. It has a cratered and dark surface, a circular orbit, and a low density, suggesting a captured asteroid origin.
Learn about Phobos and Deimos, the two tiny moons of Mars, discovered by Asaph Hall in 1877. Find out how they got their names, what they look like, and how they orbit the Red Planet.
