Discovery of water on Mars tops scientific achievements of the ...
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The discovery of water on Mars was the scientific breakthrough of 2004, according to one of the world&#39;s leading science journals.
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By Warren E. Leary  Pictures of Martian gullies taken several years apart strongly suggest that water still flows at least occasionally on the surface of the planet, scientists have announced.
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US scientists have found new data showing patterns of water and methane on Mars could improve the chances life once existed there.
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WASHINGTON - The discovery by a pair of wheeled robots that Mars once had vast pools of water and could have harboured life was chosen by the editors of the journal Science as the most important scientific achievement of 2004.
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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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Evidence from the Mars exploration rovers Spirit and Opportunity has led scientists to suggest that water was once present in large quantities on the red planet.
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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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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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The Mars rovers have found fresh evidence that water was plentiful in both the hills and plains of the now-barren Red Planet, scientists at NASA Jet Propulsion Laboratory said on Thursday.
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The discovery that salty, acidic water once flowed across the surface of Mars has topped a list of the 10 key scientific advances of 2004.
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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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Summary - (Oct 8, 2004) Now operating three times longer than originally expected, NASA&#39;s Mars Exploration Rovers are still turning up fresh evidence that liquid water once flowed on Mars.
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The twin rovers on Mars - now reviving having survived the freezing depths of Martian winter - have found new signs that water was once plentiful on Mars.
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The Mars Reconaissance Orbiter sends back images supporting theories that water once existed  -  or could still exist  -  on the red planet
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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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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 Wednesday.
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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.