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Water's role in Martian chemistry becoming clearer

As mission nears end, Phoenix Mars Lander finds chemical surprises

7:20pm, September 29, 2008

Perched on a vast plain above the arctic circle of the Red Planet, NASA’s Phoenix Mars Lander has found new evidence that liquid water was once present in the north polar region and interacted with minerals there. Phoenix scientists reported the findings September 29 during a NASA press briefing.

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