Cassini provides compelling evidence gravitational wakes in Saturn's rings

By watching a distant star as it passed behind Saturn's outer rings, Cornell University astronomers on NASA's Cassini-Huygens mission to Saturn have found the most direct evidence to date of patterns, called gravitational wakes, within the planet's outer rings.

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<p><a href="http://www.physorg.com/news8083.html">Cassini provides compelling evidence gravitational wakes in Saturn's rings</a></p> <p> By watching a distant star as it passed behind Saturn's outer rings, Cornell University astronomers on NASA's Cassini-Huygens mission to Saturn have found the most direct evidence to date of patterns, called gravitational wakes, within the planet's outer rings.</p>