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Life on Mars:

The Mars water photo gallery:

Water on Mars

More than 14 channels, each nearly 1 kilometer (0.6 miles) long, running down the south-facing slope of the Nirgal Vallis wall. The apron deposits and sand dunes in this image are uncratered, suggesting a very young geological age, according to NASA.

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This page was last updated on February 21, 2001.