Methone: 3-kilometer diameter Smooth Egg Moon of Saturn - Why is this moon shaped like a smooth egg? The robotic Cassini spacecraft completed the first flyby ever of Saturn's small moon Methone in May and discovered that the moon has no obvious craters. Craters, usually caused by impacts, have been seen on every moon, asteroid, and comet nucleus ever imaged in detail -- until now.

Methone: 3-kilometer diameter Smooth Egg Moon of Saturn - Why is this moon shaped like a smooth egg? The robotic Cassini spacecraft completed the first flyby ever of Saturn's small moon Methone in May and discovered that the moon has no obvious craters. Craters, usually caused by impacts, have been seen on every moon, asteroid, and comet nucleus ever imaged in detail -- until now.

Moons of Saturn captured by the international Cassini spacecraft

Moons of Saturn captured by the international Cassini spacecraft

Moons of Saturn. From left to right: Mimas, Enceladus, Tethys, Dione, Rhea; Titan in the background, Lapetus (top) and Hyperion (bottom).

Moons of Saturn. From left to right: Mimas, Enceladus, Tethys, Dione, Rhea; Titan in the background, Lapetus (top) and Hyperion (bottom).

Dione (A moon of Saturn)    This view highlights tectonic faults and craters on Dione, an icy world that has undoubtedly experienced geologic activity since its formation.      Image credit: NASA/JPL/Space Science Institute  Source link: http://www.nasa.gov/images/content/627613main_pia07691-full_full.jpg

Dione (A moon of Saturn) This view highlights tectonic faults and craters on Dione, an icy world that has undoubtedly experienced geologic activity since its formation. Image credit: NASA/JPL/Space Science Institute Source link: http://www.nasa.gov/images/content/627613main_pia07691-full_full.jpg

This is what the Earth looks like from a billion miles away.

This Is What The Earth Looks Like From A Billion Miles Away

Moons of Saturn : Mimas Discovery News Nope, this isnt the Death Star hanging around Saturn for its chance to blast Earth. This is Mimas, and it's a lucky survivor from an ancient, colossal collision. At 80 miles wide, the "eye" -- called Herschel crater -- covers a good portion of the 247-mile-wide moon.  CREDIT: NASA/JPL/SPACE SCIENCE INSTITUTE.

Moons of Saturn : Mimas Discovery News Nope, this isnt the Death Star hanging around Saturn for its chance to blast Earth. This is Mimas, and it's a lucky survivor from an ancient, colossal collision. At 80 miles wide, the "eye" -- called Herschel crater -- covers a good portion of the 247-mile-wide moon. CREDIT: NASA/JPL/SPACE SCIENCE INSTITUTE.

There are many pictures with a much larger view of Saturn than this one here, but zoom in and you'll see Saturn surrounded by six (6) of its moons! :D

There are many pictures with a much larger view of Saturn than this one here, but zoom in and you'll see Saturn surrounded by six (6) of its moons! :D

Moons of Saturn : Janus Discovery News Janus is a tiny, potato-shaped satellite that is typical of Saturn's 17-plus moons: cratered and icy. It's the big brother to the moon Epimetheus, which hangs out in nearly the same orbit. By studying Cassini spacecraft images closely, scientists have noticed both moons hang out in a thin but wide ring of dust and ice -- likely the leftovers of meteorite impacts over the eons. CREDIT: NASA/JPL/SPACE SCIENCE INSTITUTE

Moons of Saturn : Janus Discovery News Janus is a tiny, potato-shaped satellite that is typical of Saturn's 17-plus moons: cratered and icy. It's the big brother to the moon Epimetheus, which hangs out in nearly the same orbit. By studying Cassini spacecraft images closely, scientists have noticed both moons hang out in a thin but wide ring of dust and ice -- likely the leftovers of meteorite impacts over the eons. CREDIT: NASA/JPL/SPACE SCIENCE INSTITUTE

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