Hector Lepage Thomas Constantin Tiphaine Willocq Melissa Pommier

Diameter : 6794 kilometres Weight : 6.42 billion tonnes Mars is the fourth planet and the seventh biggest one of the solar system.

Distance Earth-Mars : 0.37 astronomic unit (a.u) Gravity : 1/3 of the Earth gravity 2 satellites : -Phobos -Deimos

It makes a turn on itself in 24 hours and 37 minutes. It makes the turn of the sun in 687 days. It is tilted at 24°.

There are many craters because a lot of stars fall on Mars.

Highest temperature : - 3°C Lowest temperature : - 133°C Average temperature : -63°C

Gas : percent of carbon dioxide percent of nitrogen percent of argon percent of oxygen percent of water

There is no greenhouse effect on Mars. The surface is radioactive because of the cosmic sun rays.