Sydney Morning Herald - July 19, 2007
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Astronomers have announced they have evidence that, despite the bitterly cold conditions on the edge of the solar system, Pluto's moon Charon may have an underground ocean of liquid water, triggering speculation it could harbour marine life.
The water appears to be spewing up through cracks in the surface, producing spectacular geysers that instantly freeze, creating showers of ice.
Using Hawaii's giant Gemini Telescope, the astronomers found that the 1200 kilometre-wide moon is covered in patches of water crystals, and ammonia hydrates.
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