Martian moon 'could be key test'
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A UK team develops a concept mission to return rock samples to Earth from the Martian moon Phobos.
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Images from a European space probe reveal recent glacial deposits and lava flows on Mars that suggest the red planet is more active than many scientists had thought.
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Mars will be unusually bright this Christmas Eve and the moon will be shining full Â a development that might make Santa Claus rethink his need for Rudolph's red nose.
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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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China and 15 other countries joined NASA officials this week to consider how they might cooperate with U.S. plans for human exploration of the moon and Mars.
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An asteroid hurtling towards Mars has a one in 75 chance of chance of scoring a direct hit on the red planet next month, NASA experts said in a statement Friday.
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Scientists will comb data sent back from Titan by the Huygens probe for the chemical signature of life in a bid to identify the moon's source of methane.
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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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NASA will send its Mars rover  Opportunity into a gaping Martian crater in July to seek clues  about the planet&#39;s bygone environment despite risks to the  plucky little vehicle, officials said on Thursday.
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Scientists are using the pine-forested slopes of a Mexican volcano as a test bed to see if trees could grow on a heated-up Mars, part of a vision of making the chilly and barren red planet habitable for humans one day.
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An orbiting spacecraft has sent back new evidence for the presence of water on Mars.
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WASHINGTON, Sept. 6  /PRNewswire/ -- NASA's Mars rover Opportunity is closing in on what may be the grandest overlook and richest science trove of its long mission.
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ANN ARBOR, Mich. -- Gusting winds and the pulsating exhaust plumes from the Phoenix spacecraft's landing engines could complicate NASA's efforts to sample frozen soil from the surface of Mars, according to University of Michigan atmospheric scientist Nilton Renno.Set to launch Aug.
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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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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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By ALICIA CHANG  SAN FRANCISCO - The chief scientist behind the twin Mars rovers said he supports a human presence on the moon, but hopes the journey won't dead-end there.
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Spectacular new images of Mars could reveal clues about tens of millions of years of the red planet's history.