Europa is the fourth largest of Jupiter's moons and has a saltwater ocean under its ice shell that has twice the amount of water contained in Earth's oceans.
The spacecraft, the largest NASA has ever built for a planetary mission, will travel 1.8 million miles to reach Jupiter in April of 2030.
Scientists aren't looking for existing life on the moon. They're more interested to learn more about the composition of the ocean and what is behind plumes that have been seen shooting up through the ice.
NASA says 'abundant liquid water, energy, and the right chemical elements make Europa one of the best places in the solar system to seek present-day life beyond Earth.'
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