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Published online 4 March 2002 | Nature | doi:10.1038/news020225-15
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Odyssey finds widespread water
Latest probe sends back strong evidence for lots of ice beneath Mars' surface.
Marsis icy. Not just on its white-capped poles, according to the first images beamed back from NASA's Mars Odyssey spacecraft.
The gamma ray spectrometer (GRS) on Odyssey detects chemicals on, or just below Mars' surface.
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