Cassini takes a closer look at Titan’s sand dunes

Cassini radar image of sand dunes on Titan. Credit: NASA/JPL–Caltech/ASI/ESA and USGS/ESA

Titan is a world that is amazingly Earth-like in some ways, with rain, rivers, lakes and seas. Mind you, the liquid in this case is methane/ethane instead of water, at the bitterly cold conditions on the surface. Also like Earth, Titan has vast sand dune fields, covering about 10 million square kilometres (39 million square miles), or 13% of Titan’s surface. The Cassini spacecraft has been studying these dunes with its radar (in order to see through the perpetually smog-like atmosphere), with interesting results…

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