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Subterranean ocean

They estimate that Pluto's ocean is, at most, about 8% denser than seawater on Earth, or about the same as the Great Salt Lake in Utah (but much less salty than the Dead Sea.
NASA's Juno spacecraft directly measured charged molecules of oxygen and hydrogen from the atmosphere of Europa, one of Jupiter's largest moons. According to new research by scientists at SwRI and Princeton, these observations provided
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