By Thomas Dodds

What Is Mars


Mars is the fourth planet from the Sun and the second smallest planet in the Solar System, after Mercury.

Distance to Earth: 225,300,000 km

Radius: 3,390 km

Distance from Sun: 227,900,000 km

Mass: 639E21 kg (0.107 Earth mass)

Gravity: 3.711 m/s²

Length of day: 1d 0h 40m