There are eight planets in the Solar System - 4 rocky planets like ours nearer the Sun, and 4 gas giants further away.

The size of the planets is shown to scale but the distances between them are not. (credit: International Astronomy Union)

ACTIVITY: Compare the characteristics of the different planets.

ACTIVITY: Explore our Solar System using NASA's Eyes on the Solar System

ACTIVITY: To get a better idea of the distances between the planets, take a look at this animation.