Mars hill find hints at wet past
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Nasa's robotic rover Spirit has found evidence that water washed and altered rocks in the hills it has been exploring on Mars.
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A cracked rock called Escher is helping NASA scientists reconstruct the history of water on Mars. They say that the crater currently being explored by the Opportunity rover may have been shaped by a second
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The hills of Mars yielded more tantalizing clues about how water shaped the Red Planet in tests by NASA&#39;s robotic geologist, Spirit, while its twin, Opportunity, observed the deep crater it climbed into two months ...
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SAN FRANCISCO -- Layers on Mars are yielding history lessons revealed by instruments flying overhead and rolling across the surface.
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PASADENA, Calif. - A patch of Martian soil analyzed by NASA's rover Spirit is so rich in silica that it may provide some of the strongest evidence yet that ancient Mars was much wetter than it is now.
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A probable active glacier is identified on the surface of Mars for the first time.
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Case closed AAAS Yet more evidence of liquid erosion on Mars from the high resolution camera aboard the Reconnaissance Orbiter has further bullet-proofed claims that there was once water on Mars.â¦
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LOS ANGELES -- One of NASA&#39;s Mars rovers has found a rock that could provide new evidence that water once existed on the red planet.
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BEIJING, Aug. 19 (Xinhuanet) -- NASA&#39;s Mars rovers have uncovered more clues about how water shaped the Red Planet, scientists said Wednesday.
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NASA experts said they have detected evidence that liquid water existed on the surface of Mars in recent years, giving weight to hopes that signs of life on the Red Planet could still be found.
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A new hypothesis could explain how the climate of early Mars became warm enough to support oceans.
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By RANDOLPH E. SCHMID Associated Press  WASHINGTON -- An orbiting spacecraft has sent back new evidence for the presence of water on Mars.    Scientists long have debated whether water flowed on the red planet, with evidence increasing in recent years.
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The hills of Mars yielded more tantalizing clues about how water shaped the Red Planet in tests by NASA's robotic geologist, Spirit, while its twin, Opportunity, observed the deep crater it climbed into two months ago, scientists said on Wednesday.
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An orbiting spacecraft has sent back new evidence for the presence of water on Mars. Scientists long have debated whether water flowed on the red planet, with evidence increasing in recent years. The presence of water would raise the possibility of at least primitive life forms existing there.
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Photographs of the Martian surface taken by an orbiting spacecraft have revealed powerful evidence that liquid water occasionally flows on the Red Planet's surface, an unexpected finding that suddenly increases the odds that the planet may harbor some kind of life.
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New findings suggest that fine clays may be deposited by relatively fast-flowing water.
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After decades of scouring images of Mars for signs of water, scientists believe they have found stunning evidence that water may even now be flowing through the Red Planet's frigid surface.