NASA Rover Finds Hints of Past Hot Springs on Mars
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A little NASA Mars rover has come across soil that scientists said on Tuesday suggests hot springs may have percolated long ago on the Martian surface, providing an environment conducive to life.
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Description: Scientists exploring Mars via the rover &#39;Opportunity&#39; published 11 papers detailing the progress of the research being done in an area called Meridiani Planum.
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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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Images taken by NASA's Mars Global  Surveyor spacecraft suggest the presence of liquid water on the  Martian surface, a tantalizing find for scientists wondering if  the Red Planet ever has harbored 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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A new hypothesis could explain how the climate of early Mars became warm enough to support oceans.
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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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Nasa's robotic rover Opportunity sends back more images as it edges towards Victoria Crater.
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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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Almost by accident, NASA's Mars rover Opportunity has found a rock that may point to a second water event in the red planet's past.
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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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Robot Mars rover Spirit has so far been eclipsed in its mission by its &quot;twin&quot; Opportunity, which found rich evidence of a wet history at its landing site.
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Scientists said Friday they were plotting the next move for the Mars rover Opportunity, which reached the edge of a deep and geologically rich crater last week after a marathon trek.
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More evidence of past water on Mars may help answer the questions &quot;How wet?&quot; and &quot;How long?&quot; At a news conference here at the fall meeting of the American Geophysical
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The Mars Opportunity site continues to intrigue scientists as they decipher the chemistry deeper in Endurance crater. The rise in chlorine and fall in sulfur may suggest alterations by evaporating water in the crater's past.
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The rover Opportunity will soon go over the edge into Victoria Crater in search of new hints about Marsâs ancient, and possibly wet, past.
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An orbiting spacecraft has found  evidence of what look like seven caves on the slopes of a  Martian volcano, the space agency NASA said on Friday.