OUR SOLAR SYSTEM: MARS

The fourth planet from the sun is Mars. Mars has a very thin atmosphere composed mostly of the small amount of remaining carbon dioxide (95.3%) plus nitrogen (2.7%), argon (1.6%) and traces of oxygen (0.15%) and water (0.03%). It has two moons, Phobos and Deimos. The diameter is 6,794. It has a mass of 6.04219e23 kg. The orbit path is 227,940,000 km (1.25 AU) from the Sun. It is 35 million miles away from earth.