This image provided by NASA of Saturn's moon Enceladus was made by the Casini spacecraft during a fly-by on Aug. 11, 2008. This false-color mosaic combines Imaging Science Subsystem (ISS) narrow-angle... more 
This image provided by NASA of Saturn's moon Enceladus was made by the Casini spacecraft during a fly-by on Aug. 11, 2008. This false-color mosaic combines Imaging Science Subsystem (ISS) narrow-angle camera images obtained through ultraviolet, green, and near-infrared camera filters. Areas that are greenish in appearance are believed to represent deposits of coarser grained ice and solid boulders that are too small to be seen at this scale. The whitish deposits represent finer grained ice. The mosaic shows that coarse-grained and solid ice are concentrated along valley floors and walls, as well as along the upraised flanks of the ?tiger stripe? fractures. Every new discovery makes it seem more likely that we are not alone. The case for some kind alien life somewhere else in the universe is steadily building. In the past few days, scientists have revealed there are three times as many stars as they previously thought and that a bacteria can live on arsenic, expanding our understanding of how life can thrive under the harshest and strangest environments. Those came on the heels of the first discovery of a potentially habitable planet. less 
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Associated Press | Photo By NASA
Wed, Dec 8, 2010 6:17 AM EST