Shulou(Shulou.com)11/24 Report--

CTOnews.com, January 23-Twitter account Amazing Astronomy has shared a clear photo of Phobos, which shows a crater on the satellite's surface.

Asaph Hall first discovered Phobos "Phobos" on August 17, 1877. Phobos is the larger of the two Martian moons. It orbits Mars three times a day and can be very close to the surface of Mars. What is important is that the moon is approaching Mars at a speed of six feet per hundred years and may collide with Mars in the next 5000 million years.

CTOnews.com lesson: Phobos has an average radius of 11.1km, 1.8 times that of Phobos, another satellite. Phobos's name is Phobos, the son of Ares, the god of war in Greek mythology. Phobos is an irregularly shaped small celestial body. The orbit around Mars is about 9400 kilometers from the center of Mars, that is, 6000 kilometers from the surface of Mars.

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