Surprises lurk inside a Saturn moon

Mimas may hide a subsurface sea or oddly shaped core

Saturn’s smallest major moon, Mimas

NOT A SPACE STATION  Saturn’s smallest major moon, the nearly 400-kilometer-wide Mimas, shows off a crater seemingly inspired by Star Wars in this 2010 image from the Cassini spacecraft. 

JPL-Caltech/NASA, Space Science Institute

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