View Full Version : Density Waves in Saturn's Rings

2005-Sep-12, 07:08 PM
SUMMARY: Researchers have used the Cassini spacecraft to make observations of Saturn's rings with tremendous clarity, resolving images down to the size of a football field. A team from the University of Colorado at Boulder have used a technique called "stellar occultation" to look through the rings at a distant star, and then watch how the ring particles obscure it. The ring material bunches up into denser areas, with gaps between them as small as 50 metres (160 feet). This is unusual, because they should be spreading out in the vacuum of space - this means that small objects, like moons, are stirring up the material in the rings like ripples in a pond.

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