Mars

Mars

Image courtesy of NASA / JPL-Caltec

Mars is the forth planet from the Sun, named after the Roman God of war because of it's reddish color. Mars is about half the size of Earth and is also a rocky planet, but with a much thinner atmosphere mostly consisting of Carbon Dioxide and Nitrogen.

Phobos and Deimos are the two small moons of Mars. They are too small to be spherical and are more like asteroids in shape and might be of origin.

Mars like Earth is a terrestrial planet also having volcanos and other terrestrial features, but without a magnetic field.

Water ice has been confirmed present on Mars and observations suggest that liquid water has been present in the past. There might even still be trapped liquid water present at the poles.

Missions to Mars

Mariner 4 - United States - 28 nov 1964 Read more

Mariner 6 - United States - 25 feb 1969 Read more

Mariner 7 - United Staed - 27 mar 1969 Read more

Future Missions to Mars

Facts

Radius: 3.397 km

Density: 3,94 g/cm3

Gravity: 3,693 m/s2

From Sun: 1.52 AU

Lenght of day: 24,62 hours

Lenght of year: 686,93 days

Surface temperature: -87 to -5

Core temperature: ?

Composition: Silicates and iron