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                      -- Suddenly, It Seems, Water Is Everywhere in Solar System

"Oceans trapped under ice appear to be pretty common in the solar system and one of them, on a small moon of Saturn's, appears to be quite hot.

This week in the journal Nature, an international team of scientists reported evidence for hydrothermal vents on the Saturnian moon Enceladus, with temperatures of its rocky core surpassing 194 degrees Fahrenheit (90 degrees Celsius) in spots. The discovery, if confirmed, would make Enceladus the only place other than Earth where such chemical reactions between rock and heated water are known to be occurring today — and for many scientists, it would make Enceladus a most promising place to look for life."