Cassini views swirling vortex on Saturn, U.S. Navy readies for unmanned aircraft test, clashes in Egypt and more.
Nov. 27, 2012
Roiling storm clouds and a swirling vortex at the center of Saturn's famed north polar hexagon can be seen in this image from NASA's Cassini mission. The camera was pointing toward Saturn from approximately 224,618 miles away.
NASA/JPL-Caltech/Space Science Institute via Reuters