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Is There Water on Mars? In a storied search for possible signs of life on Mars both past and present, scientists now have their best evidence yet that life-giving water may still exist on the barren planet. A series of high-quality photos from NASA’s Mars Reconnaissance Orbiter seems to show water flowing on the red planet over a number of months. This is the first time that water flow markings have been observed changing over a period of time. And the liquid flowing on the surface of Mars is thought to be roughly the same salinity as Earth’s oceans, which could still have supported a plethora of living creatures.
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