NASA Mars Orbiter catches twister in action | Science News | Scoop.it
From www.sciencedaily.com - March 12, 2012 5:03 PM
An afternoon whirlwind on Mars lofts a twisting column of dust more than half a mile (800 meters) high in an image from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter.