Here are few a facts about the 4th planet from the sun, Mars. Mars is called the Red Planet because of all the iron in the soil. Mars may look warm but it’s very cold. Mars has two moons, and their names are Phobos and Deimos. Another name for Mars is Ares from the Greek God of War and the two moons are named after his sons. Mars can have huge dust storms which last for months and can cover the entire planet.