Microscopics

Separated at birth…

Mimas (left) and Death Star (right)

Spotted in orbit around Saturn is the Death Star small moon Mimas.

Whatever hit Mimas nearly destroyed it. What remains is one of the largest impact craters on one of Saturn’s smallest moons. The crater, named Herschel after the 1789 discoverer of Mimas, Sir William Herschel, spans about 130 kilometers and is pictured above. Mimas’ low mass produces a surface gravity just strong enough to create a spherical body but weak enough to allow such relatively large surface features. Mimas is made of mostly water ice with a smattering of rock – so it is accurately described as a big dirty snowball.

The DeathStar (not a real star) is a moon sized spacestation and super-weapon, destroyed a long, long time ago.

A remarkably close fit when merged…

…

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