What is Hyperion (moon)?
[[File:Hyperion in natural colours.jpg|thumb|Hyperion]] '''Hyperion''' is a [[Satellite (natural)|moon]] of [[Saturn (planet)|Saturn]]. It was discovered on September 16, 1848 by [[William Cranch Bond]], [[George Phillips Bond]] and [[William Lassell]]. It is irregular in shape, and has a [[sponge]]-like appearance. It is the second largest irregular (i.e. not [[sphere|spherical]]) moon in the [[Solar System]], the largest being [[Proteus (moon)|Proteus]]. It was the first non-spherical moon discovered. Its [[rotation]] is [[chaotic]], meaning its [[Axis (mathematics)|axis]] of rotation wobbles, unlike how the [[Earth]] and the [[Moon]] rotate, or any other moon in the [[Solar System]]. <br />{{Moons of Saturn}} {{sci-stub}} [[Category:Saturn's moons]]