'Active glacier found' on Mars
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A probable active glacier is identified on the surface of Mars for the first time.
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Mars shows signs of geologically recent volcanic activity, and scientists find to their surprise that another volcanic blast may be in the Red Planet&#39;s future.
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Bad news for aliens in charge of special effects The southern Martian ice cap is mostly made of water, according to those clever boffins* at MIT.â¦
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Pictures of Martian gullies taken years apart suggest that liquid water still flows on the planetÂs surface.
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New close-up pics of the Red Planet NASA's Mars Reconnaissance Orbiter has delivered its first close-up snaps of the Martian surface, courtesy of the High Resolution Imaging Science Experiment (HiRISE).â¦
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By JOHN JOHNSON JR.  NASA scientists announced Wednesday that they had found evidence that water still flows over the surface of Mars - sporadic gushers that increase the possibility that the Red Planet could harbor some form of life.
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A provocative new study of photographs taken from orbit suggests that liquid water flowed on the surface of Mars as recently as several years ago, raising the possibility that the Red Planet could harbor an environment favorable to life.
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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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The discovery of Mars&#39; watery past by NASA&#39;s Spirit and Opportunity rovers has been chosen as the key scientific advance of 2004 in an annual list compiled by Science magazine.
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By ALICIA CHANG, THE ASSOCIATED PRESS  LOS ANGELES  A provocative new study of photographs taken from orbit suggests that liquid water flowed on the surface of Mars as recently as several years ago, raising the possibility that the Red Planet could harbor an environment favorable to life.
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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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Stunning color images offer new evidence that plentiful water once percolated through Martian bedrock&#8212;and new hints as to where life might be hiding.
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By ALICIA CHANG Associated Press  Video:  Possible Water Found on Mars     LOS ANGELES -- New photographs from space suggest that water occasionally flows on the frigid surface of Mars, raising the tantalizing possibility that it is hospitable to life, scientists reported Wednesday.
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New data showing overlap in patterns of water and methane in Mars' atmosphere may have implications for the idea that life exists there.
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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.
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NASA&#39;s Mars rovers have returned new evidence for past water, pictures of Earthlike clouds seen for the first time from the planet&#39;s surface, and a rock that doesn&#39;t look like anything scientists have ever seen.
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Nasa's robotic Mars rover Opportunity has found the first meteorite ever seen on the surface of the Red Planet.