How many moons does Mars have?
Mars, also known as the Red Planet, is the fourth planet from the sun and is known for its dusty, rocky terrain. Unlike Earth, which has one moon, Mars has two moons named Phobos and Deimos. Both of Mars’ moons are irregularly shaped and are believed to be captured asteroids. Phobos, the larger of the two moons, is about 22.2 kilometers (13.8 miles) in diameter and orbits very close to Mars, completing one orbit in just 7 hours and 39 minutes. Deimos, the smaller of the two moons, is about 12.4 kilometers (7.7 miles) in diameter and orbits Mars at a greater distance, completing one orbit in about 30 hours. Despite their small size, Phobos and Deimos are still fascinating objects that help scientists better understand the geology and history of Mars.