Lava flows from Mt Etna, imaged in February 2013. This is a false color image that's coded to emphasize different features. The red, for example, is fresh lava flow. The blue-green color - fortunately for the people nearby - is just snow. The picture was taken by NASA's Earth Observing-1 satellite.
Last edited by Mona - Astronomy; 06/15/1412:01 PM.