Saturn's "Death Star" Moon Mimas May Actually Be Packed Full of Water
Briefly

Saturn's moon Mimas may have an ocean of liquid water beneath its icy crust, suggests a recent study. Icy moons with oceans locked away beneath miles of ice are turning out to be fairly common in our Solar System. If tiny Mimas has one, scientists surmise there might be far more than we think.
Mimas is only about 246 miles wide.
Lainey and his colleagues studied old data from NASA's Cassini mission (RIP) and found that the only simulated moon that precessed like the real Mimas was one with a deep ocean layer of liquid water inside, hidden away beneath 12 to 18 miles of ice.
When Lainey and his colleagues ran computer models, the only simulated moon that precessed like the real Mimas was one with a deep ocean layer of liquid water inside, hidden away beneath 12 to 18 miles of ice.
Although Mimas is sporting that enormous crater fr
That's surprising because, from the outside, Mimas looks like a solid ball of ice with a big dent on one side: a crater called Herschel, which is the centerpiece of the moon's whole Death Star cosplay.
Read at Inverse
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