Methane on Mars causes controversy
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Methane and water vapour are concentrated in the same regions of the Martian atmosphere, say scientists studying data from Europe&#39;s Mars Express orbiter.
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The Mars rover Opportunity has found new evidence of past existence of water on the Red Planet, NASA said. Opportunity keeps finding new clues of past water as it continues probing Mars, said mission scientists
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Paris - The European Space Agency (ESA) said on Monday that it had found concentrations of water vapour and the gas methane in the same places on Mars, a finding which strengthens speculation that the Red Planet could be a haven for microbial life.
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In a prelude of more problems that are likely to arise, both of NASA's Mars    rovers experienced glitches this week as they plow through unknown engineering    territory, operating well beyond what the mission blueprints called for.
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Controversial claims again surface that Martian microbes hitched a ride to Earth on meteorites.
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NASA says a false-color image taken by its Mars Exploration Rover Opportunity shows a rock dubbed &quot;Escher&quot; whose fractures, which divide the surface into polygons, may have been formed when water left over from the rock&#39;s formation dried up.
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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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A controversial new study suggests Mars had an acidic ocean. The strange brew spiked with sulfates and iron could still have harbored life, scientists say.
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Sniffing out any whiff of biology on Mars has become a scientific battle of the bands - spectral bands that is. The purported detection of methane in the martian atmosphere by Mars Express, the European
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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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Photographs sent by a NASA orbiter suggests that water may indeed be flowing on Mars. And where there's water, there's at least a chance of life. By the Associated Press.
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Mars may still house large reservoirs of the water and carbon dioxide that once formed the planets ancient atmosphere, new research suggests.
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By AJ Hostetler  Studying Mars can help scientists understand more about the potential effects of Earth's global warming, said a NASA Langley Research Center atmospheric scientist.  Langley's Joel S.
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Scientists say there is no doubt that abundant water once soaked Mars. Now the big question is whether the red planet ever supported life. Some experts say the early signs are promising.
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LIVELY MARS : ET might just be out there. NASA&#39;s two Mars rovers, Opportunity and Spirit, landed on the Red Planet early in 2004 and have since found conclusive evidence of water that could possibly have harboured life.
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Scientists controlling the Opportunity Mars rover are taking an up-close look at an intriguing pitted rock on Mars, now dubbed "Heat Shield Rock".
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CUATRO CI&#xC9;NEGAS, Mexico -- Dairy farming is endangering an ancient oasis in the Great Chihuahuan Desert that scientists say can help them understand earth's beginnings, global warming, and the chances of life on Mars.