"It's hard to imagine they are formed by anything other than fluid seeping down slopes," said Mars Reconnaissance Orbiter Project Scientist Richard Zurek of Nasa's Jet Propulsion Laboratory, but they appear when it's still too cold for fresh water.
"Their results are consistent with the presence of large and extensive underground salty lakes on Mars." says Professor Shiladitya DasSara. Could halophilic microbes survive on Mars? The professor is excited at eh possibility.
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