The puzzling, fascinating surface of Jupiter’s icy moon Europa looms large in this newly-reprocessed color view, made from images taken by NASA’s Galileo spacecraft in the late 1990s. This is the color view of Europa from Galileo that shows the largest portion of the moon’s surface at the highest resolution.
Newly enhanced image of Europa (Large version)
NASA JPL also released this video to promote Europa exploration:
Astronomer Phil Plait suggests there is a campaign underway to win a mission to Europa to investigate what is in that ocean : Europa: Remastered image may be prelude to a mission campaign – Slate.com