Moon

A Moon is a Celestial Body that orbits around a Planet. Some Moons are actually bigger than Planets. One is bigger than Mercury, the closest planet to The Sun. Crazy, huh? There are lots of moons in The Universe, there are actually more moons than Planets in the Solar System.

The Planet that has the most moons is Jupiter, with 63! Also, did you know that Earth had 2 moons for a period of time? Crazy fact! Ok, let’s get back on the topic. Moons have to be round, not flat or rectangular. (I think that’s obvious...) They have to orbit a planet, not fly around randomly in space.

Moons can just fly near a planet and get caught in a Orbit, or a object can crash in a Planet and the remains will be a moon.