Moon

''This article is about moons in general. For Earth's moon, see the Moon.''

A moon, natural satellite or  luna is an astronomical object that is found in orbit around a planet. Some moons, like Voga, are planetoids brought into orbit around a planet by the planet's gravity, while others, like the Moon, are of uncertain origin (DW: Revenge of the Cybermen, Doctor Who and the Silurians).