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Evidence of puddles on Mars

Posted on behalf of Adam Mann Scientists no longer debate whether water exists on Mars. There is water ice at the planet’s poles and abundant evidence of frost and subsurface ice in other spots. What’s not settled is whether water currently flows openly on the surface at times, creating gullies in craters and dunes. Most of the time, Mars’ surface stays below the freezing point of water and its atmosphere is so thin and dry that any open water should quickly evaporate. On 10 March, a couple of scientists presented new evidence of liquid water on the Martian surface. The 

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