Mars has two irregularly shaped moons, the inner moon Phobos and the outer moon Deimos.
NASA/JPL-California Institute of Technology/GSFC/University of Arizona
Mars’ two moons may have once been a single comet that got stuck in Mars’ trap and broke up, and a future mission could definitely find out.
How Mars acquired its two moons, Phobos and Deimos, is a bit of a mystery. They are small at 27 kilometers and 15 kilometers in diameter, respectively, and both orbit around the Earth’s equator. Astronomers suggest they may have formed after the impact of Mars…
Source: www.newscientist.com
