Planet
Mars
The red planet
Description
Mars gets its colour from iron oxides in its dust. It hosts Olympus Mons, the tallest volcano in the Solar System, and Valles Marineris, a canyon system about 4,000 km long. Ancient river beds and lakes show that water once flowed on its surface.
Did you know?
Mars has two small moons, Phobos and Deimos, probably captured asteroids.