Find out how many moons there are in our Solar System, and what makes some of them special.
- A moon is a natural satellite orbiting a planet or asteroid.
- There are over 160 moons in orbit around planets within our Solar System.
- The largest moon in the Solar System is Jupiter's Ganymede and the smallest is Deimos, which orbits Mars.
- IO, one of Jupiter's moons, has over 400 active volcanoes, while Tethys, one of Saturn's moons, is made entirely of water-ice.
A moon is a natural satellite orbiting a planet or asteroid
There are over 160 moons orbiting planets in our Solar System
Moons vary greatly
The largest moon is Jupiter's Ganymede – It's bigger than Mercury!
Mars' Deimos is one of the smallest – only 7 miles in diameter!
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