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How fast is the debris in Saturn's rings moving?

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Saturn’s rings extend from about 6630 km to 120700 km from its surface. At the inner edge, orbital velocity is about 75 km/s, at the outer edge it is 17 km/s. This means that objects in the rings move faster the closer they are to the planet (the rings don’t rotate ‘as a whole’). read more

If there were cars in space, it would take more than a week to drive across some of Saturn's rings. On the other hand, the rings are quite thin. They are only about 30 to 300 feet thick. read more

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