Web edition: May 5, 2012
On March 14, a giant rose from the dust on Mars and raced across the planet’s surface. This behemoth was no alien: It was a towering pillar of twisting wind known as a dust devil. Photographed by a NASA spacecraft passing overhead, the swirling storm stood 20 kilometers (12.4 miles) tall and stretched more than half the width a U.S. football field.
D. Powell. Tall, devilish storm skids across Mars’ surface. Science News Online, April 10, 2012. [Go to]