From UPI.Com

BOULDER, Colo. -- A University of Colorado-Boulder research team says it has discovered the first definitive evidence of shorelines on Mars.

The scientists, led by researcher Gaetano Di Achille, said the finding is an indication of a deep, ancient lake, with implications for the discovery of past life on the Red Planet.

The scientists estimate the lake covered as much as 80 square miles and was up to 1,500 feet deep.

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