Hot water activity on icy moon’s seafloor

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Tiny grains of rock detected by the international Cassini spacecraft orbiting Saturn point to hydrothermal activity on the seafloor of its icy moon Enceladus.

via ESA Space Science

http://www.esa.int/Our_Activities/Space_Science/Cassini-Huygens/Hot_water_activity_on_icy_moon_s_seafloor