Mars – the red planet – is a single vast desert between two ice-covered poles. It gets its color from rusted iron.

Earth’s smaller neighbor is the most explored of the planets of the Solar System. It was named after the Roman god of war and has inspired both science fiction about alien invasions and plans for colonization.

Despite its small size, Mars is home to the Solar System’s tallest mountain: the volcano Olympus Mons, measuring an impressive 22 km.