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Alien Ocean
Featured on April 22, 2019
Grooves and cracks criss-cross the icy surface of Europa, one of the larger moons of Jupiter. Scientists suspect that a global ocean of liquid water lies beneath the ice. NASA and the European Space Agency are planning missions to Europa, to launch in 2022 or later. Engineers are even planning ways to tunnel through the ice to sample Europa's ocean. This near-true-color view was compiled from several images from the Galileo spacecraft. [NASA/JPL/SETI Institute]
