A movie(1) depicting views from the space probe Huygens as it descended onto the surface of Saturn's moon Titan has just been released. Scientists now suspect that dark patches originally thought to be methane seas are actually vast swaths of sand dunes, reports the Christian Science Monitor(2).

1. http://saturn.jpl.nasa.gov/multimedia/videos/video-details.cfm?videoID=117
2. http://www.csmonitor.com/2006/0508/p02s01-stss.html