An image of Europa's surface, showing many features indicating the presence of a submerged ocean
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Image courtesy of NASA
The surface of Europa shows many signs of that there may be an ocean hidden underneath:
These clues make it pretty clear that there is an ocean under the icy surface of Europa.
Shop Windows to the Universe Science Store!
Learn about Earth and space science, and have fun while doing it! The games
section of our online store
includes a climate change card game
and the Traveling Nitrogen game