News tagged with sand dunes

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Winds of change strike Mars, too

Mysterious dark sand dunes around Mars' northern polar cap are shifting with the seasons, as carbon dioxide gas changes form and sparks landscape-altering avalanches, said a study published Thursday.

dateFeb 03, 2011 in Space Exploration
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Martian rock arrangement not alien handiwork

At first, figuring out how pebble-sized rocks organize themselves in evenly-spaced patterns in sand seemed simple and even intuitive. But once Andrew Leier, an assistant geoscience professor at the U of C, started observing, ...

dateJan 07, 2009 in Space Exploration
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