Moon, cubed

The Cassini-Huygens mission to Saturn & Titan, launched in 1997, has sent some fantastic photos home but this one of Epimetheus, one of Saturn’s 60 known moons, bears some special examination.

At just 116km diameter Epimetheus never became ball-shaped under its own gravitational pull when it formed. The result is a roughly cubic shape, probably the result of several large meteor or comet impacts over the life of the solar system. A real oddity.


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