We already know that Europa, arguably Jupiter's most interesting moon, contains a global ocean that runs about 100 miles deep, with an icy crust on top, as Space.com reports. For years, scientists have theorized that the moon could support extraterrestrial life
, at least in microbial form.
Richard Greenberg, a planetary scientist at the University of Arizona's Lunar and Planetary Laboratory at Tucson, and the author of Unmasking Europa: The Search for Life on Jupiter's Ocean Moon, explained in the article that an oxygen-rich layer of ice at the top could actually extend down much further than thought, and could reach the oceans underneath.
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