Good News Network
•83% Informative
Mimas , a small moon of Saturn 's Enceladus , has a crater shaped like a ball the size of California or Spain .
Previous research has suggested two possibilities for Mimas ’ interior: either an elongated rocky core or a global ocean.
The authors calculate that the ocean lies beneath an icy shell approximately 12 to 18 miles ( 2030 km) deep.
Simulations suggest it appeared between 25 and 2 million years ago .
Lainey and colleagues’ findings will no doubt motivate a thorough examination of mid-sized icy moons throughout the solar system.
The idea that relatively small, icy moons can harbor young oceans is inspiring, as is the possibility that transformational processes have occurred even in the most recent history of these moons.
VR Score
89
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