New data strengthen Mars life evidence
231583
US scientists have found new data showing patterns of water and methane on Mars could improve the chances life once existed there.
266085
New data showing overlap in patterns of water and methane in Mars' atmosphere may have implications for the idea that life exists there.
148829
NASA's&nbsp;twin&nbsp;Mars rovers&nbsp;Spirit and Opportunity&nbsp;have  yielded volumes of new data about the red planet in the last year - the least of  which involves the planet's history of water. But the rovers have also amazed  their human handlers with their longevity, lasting nearly four times&nbsp;their  initial 90-day mission&nbsp;despite some early glitches that popped up after  landing.
29110
Scientists using data from a European probe orbiting Mars have made new topographic maps of the Red Planet.
181970
The European Space Agency(ESA) says it has found concentrations of water vapour and the gas methane in the same places on Mars, which strengthen speculation that the Red Planet could be a haven for microbial life.
487908
It&#39;s the discovery by two Mars rovers that the Red Planet once had water and possibly could have supported life. That recognition comes today from the journal Science.
354102
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.
427058
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.
24323
A new hypothesis could explain how the climate of early Mars became warm enough to support oceans.
474328
The idea that there may be life on Mars has been around for centuries, but the theory got a dubious boost from recently released photos of the surface of Mars (taken by the NASA robot Spirit) apparently showing a human-like figure. Several Internet sites have glommed onto the image and suggested the figure could be alive.
534852
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.
2021
Nasa says it has found "compelling" evidence that water flowed recently on the Martian surface.
646234
After studying thousands of images from Mars, scientists now are convinced that liquid water once flowed on the surface of the red planet, increasing the odds that life may have existed there in the distant past.
228396
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.
597
Concentrations of water vapor and methane gas in certain regions of the red planet strengthen speculation that Mars could be a haven for microbial life.
284266
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.
177067
BEIJING, Aug. 19 (Xinhuanet) -- NASA&#39;s Mars rovers have uncovered more clues about how water shaped the Red Planet, scientists said Wednesday.