Mars is the fourth planet in the Solar system by distance from the star. The diameter of the planet is 6794 km (0.53 of the diameter of the Earth). Its orbit is 1.52 au from the Sun. Mars has two moons: Phobos and Deimos. The period of rotation of the planet around the axis is 24 hours 37 minutes, the period of rotation around the Sun is 1.88 Earth years. The atmosphere of Mars is sparse and 95% consists of carbon dioxide, it also contains nitrogen, argon and oxygen. The surface of the planet...
