NASA Sees Hint of Liquid Water on Mars
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NASA sees hint of liquid water on Mars    WASHINGTON, Dec. 6 (Xinhua) -- Images sent back by NASA's Mars Global Surveyor orbiter suggest the existence of liquid water on Mars which heightens the potential for microbial life on the Red Planet, NASA scientists said on Wednesday.
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By ALICIA CHANG   Associated Press writer  LOS ANGELES  -- For decades, scientists have scoured Mars in search of water, a basic ingredient for primitive life.   But the best clues were always tied to the ancient past when the Red Planet was warmer and wetter.
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Concentrations of water vapor and methane gas in certain regions of the red planet strengthen speculation that Mars could be a haven for microbial life.
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On one side of Mars, NASA&#39;s Spirit rover has found a mineral that solidly points to water activity. Meanwhile, the Opportunity rover has found confirmation
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Now that NASA's Mars Exploration Rover Spirit is finally examining bedrock in the "Columbia Hills," it is finding evidence that water thoroughly altered some rocks in Mars' Gusev Crater.
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NASA&#39;s Mars rover Opportunity found evidence for a lake or sea on Mars, and new research suggests the body of water was deep, large and long-lasting.
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After studying thousands of images from Mars, scientists now are convinced that liquid water once flowed on the surface of the red planet, increasing the odds that life may have existed there in the distant past.
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Water vapour and methane gas have been found in the same places on Mars, strengthening speculation that the Red Planet could be a haven for microbial life, space scientists say.
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A probable active glacier is identified on the surface of Mars for the first time.
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Scientists analysing data from the Mars exploration Rover missions believe water was involved in the formation of rocks on the planet.
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The US space agency NASA says one of its two rovers on Mars has found possible fresh evidence that liquid water existed there in the past.
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Findings in the Martian atmosphere by the European Mars Express spacecraft orbiting the red planet correspond to areas where the US Mars Odyssey spacecraft has detected possible water ice just beneath the surface.
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Mars rover Spirit has found its own compelling evidence that liquid water flowed at its landing site on the Red Planet.
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WASHINGTON --      A pair of NASA scientists told a group of space officials at a private meeting      here Sunday that they have found strong evidence that life may exist today      on Mars, hidden away in caves and sustained by pockets of water.
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Almost by accident, NASA's Mars rover Opportunity has found a rock that may point to a second water event in the red planet's past.
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LOS ANGELES: New photographs from space suggest that water occasionally flows on the frigid surface of Mars, raising the tantalizing possibility that the Red Planet is hospitable to life, scientists reported.
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Nasa says it has found "compelling" evidence that water flowed recently on the Martian surface.