Surprises lurk inside a Saturn moon
Mimas may hide a subsurface sea or oddly shaped core
![Saturn’s smallest major moon, Mimas](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/10/cc_mimas_feat_free.jpg?fit=860%2C460&ssl=1)
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