A new mosaic made from images taken by NASA's Galileo spacecraft in the late 1990's is shown of the surface of Jupiter's icy moon, Europa, as it looms large in this newly-reprocessed, higher resolution color view in this handout provided by NASA November 24, 2014. This newer version was created from images assembled into a realistic color view of the surface that approximates how Europa would appear to the human eye. NASA/JPL-Caltech/SETI Institue/Handout via Reuters