US Scientists: Clear Evidence Mars Had Flowing Water
U.S. scientists say pictures sent back from the Curiosity probe on Mars show clear evidence that water – essential for life – once flowed on the planet.
The pictures ofCuriosity’s landing site in a Martian crater show pebbles and stones driven into the rock. The scientists say the stones are smooth and round, a sign that they were driven by flowing water – possibly a waist-deep river teeming with microorganisms.
The scientists say this area of Mars may have at one time been habitable.
The Curiosity probe landed on Mars last month for a two-year mission to explore the surface of the red planet.
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