The Solar System contains the Sun, eight planets with their moons, and lots of other smaller objects such as dwarf planets, asteroids and comets.

The four planets closest to the Sun are called the inner Planets and are typically small, warm, rocky worlds.

Mercury : Venus : Earth : Mars

The four outer Planets are much larger and cooler, and mainly made of gas. As a result, they are known as gas giants.

Jupiter : Saturn : Uranus : Neptune