Saturn's Death Star-looking moon may have vast underground ocean
Briefly

Astronomers have found evidence of a vast ocean beneath the surface of Saturn's moon Mimas.
The French-led team analyzed changes in Mimas' orbit and rotation and reported Wednesday that a hidden ocean 12 to 18 miles (20 to 30 kilometers) beneath the frozen crust was more likely than an elongated rocky core.
The ocean is estimated to fill half of Mimas' volume, but represents only 1.2% to 1.4% of Earth's oceans given the moon's small size.
The ocean is believed to fill half of Mimas' volume, according to Lainey.
Read at english.elpais.com
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