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Mini-moons form in a matter of months in Saturn's chaotic F ring
Mini-moons form in a matter of months in Saturn's chaotic F ring

In the chaotic fog of Saturn's F ring, scientists believe mini-moons come together and get ripped apart in a constant dance of moon formation and destruction. And the coolest part? These moonlets can be made and destroyed over the course of a school year the researchers say. While most processes in the universe happen on the order of millions and billions of years, the small moons of Saturn's F ring coalesce and disperse in the matter of weeks to months. The F ring is one of the outermost in Saturn's icy ring system. It is much narrower than the other rings,  tens to hundreds of kilometers wide, while main rings A, B and C are tens of thousands kilometers wide. ...

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