News tagged with dunes

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.

Feb 03, 2011
4.4 / 5 (14) 7 | with audio podcast

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, ...

Jan 07, 2009
4.4 / 5 (8) 2