Mars

Mars is the fourth planet from the Sun and the second smallest in the Solar System. It is often called the "Red Planet" because of its reddish, iron-rich surface.

Features

Mars has the largest volcano and one of the deepest canyons in the Solar System, polar ice caps, and evidence that liquid water once flowed on its surface.

Exploration

Many missions have studied Mars, including rovers that search for signs of past life. It is a leading target for future human exploration.

Frequently asked questions

Why is Mars called the Red Planet?

Because iron oxide gives its surface a reddish colour.

Could there be life on Mars?

No life has been found, but scientists search for signs of past microbial life.