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Bright Spokes

Featured on November 20, 2017

Bright "spokes" radiate through Saturn's rings in this image from the Cassini spacecraft. The most likely explanation is that the spokes are made of tiny grains of dust. The particles acquire an electric charge, so they levitate above the rings, pulled along by Saturn’s magnetic field. [NASA/JPL/SSI]

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Find out more in our radio program entitled

Moon and Saturn

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Two stars trying to get in sync

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Bright Spokes

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