Galileo
Europa, Ice Moon with Hidden Oceans
The Galileo Europa Mission (GEM) began in December 1997 as NASA's Galileo spacecraft successfully completed its nominal mission of 11 orbits around Jupiter. The left image shows the approximate natural color appearance of Europa. The image on the right is a false-color composite version combining violet, green and infrared images to enhance color differences in the predominantly water-ice crust of Europa.
NASA/JPL
   
 
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