Dunes on Titan need firm winds to move, experiments at ASU show

December 8, 2014 6:21 PM

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Lines of dunes crawl across the surface of Titan, Saturn's largest moon, in a radar image showing dunes as dark. Experiments at ASU's wind tunnel indicate the dune particles move only under winds that blow stronger than scientists previously thought.

The high-pressure wind tunnel at ASU's Planetary Aeolian Laboratory was originally built to simulate winds at the surface of Venus, where atmospheric pressures are about 90 times greater than on Earth. After modifications, it became the Titan Wind Tunnel, with researchers using it to determine how f...

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