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NASA, Saturn, Cassini, rings
Cassini took this image of Saturn in 2012. NASA/JPL-Caltech/SSI
Planets

Saturn's Rings Are Raining Organic Compounds, Cassini's Grand Finale Reveals

The iconic planet's "ring rain" is more like a ring downpour, and it's coming down much harder than anyone thought.

Cassini photographed vertical structures towering along the edge of Saturn's B ring, casting long shadows below. NASA/JPL/SSI
Saturn's rings are made up of many smaller ringlets that blur together when seen from a distance. This 2016 view from Cassini looks toward the sunlit side of the rings from about 4 degrees above the ring plane. NASA/JPL-Caltech/Space Science Institute