April 25, 2012
Snowball Fight!

Saturn space probe Cassini has spotted snowballs the size of city blocks bashing their way through that planet's rings. The discovery was accidental, the result of a "last look" through the data, and should help in understanding not only how Saturn's rings work, but also how any disk of debris may behave in space. You know, like how planets form, that sort of thing.

Posted by scott at April 25, 2012 08:38 AM

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