Martian Fossils Best Bet for Locating Life
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SAN FRANCISCO, Calif. -- Hunting for traces of life on Mars calls for two radically different strategies, says Arizona State University professor Jack Farmer.
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SPACE.com / Insect bite marks in ancient leaf fossils are shedding new light on how nature bounced back after an asteroid impact killed off the dinosaurs and much of life on Earth 65 million years ago.
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More than 30 years ago, when NASAâs two Viking landers looked for signs of life on Mars, the results were ambiguous.
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Hollow spheres found in a primordial meteorite could yield clues to the origin of life on Earth.
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PASADENA, Calif. - A patch of Martian soil analyzed by NASA's rover Spirit is so rich in silica that it may provide some of the strongest evidence yet that ancient Mars was much wetter than it is now.
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Scientists said Friday they are 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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com. Almost by accident, NASA&#39;s Mars rover Opportunity has found a rock that may point to a second water event in the red planet&#39;s past.
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ROBERT ZUBRIN: First for the science, second for the challenge, and third for the future. First, for science. Mars is the key to letting us know if life is a general phenomenon in the universe.
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Ancient bacteria are able to survive nearly half a million years in harsh, frozen conditions, researchers said on Monday in a study that adds to arguments that permafrost environments on Mars could harbor life.
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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.
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The  discovery of an iron meteorite sitting on Mars by NASA's Opportunity  rover has kick-started a wide-ranging discussion as to what the find may  be telling us about the planet itself, past water conditions there, and just  how peppered the red planet might be with the fallen objects.
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NASA's Mars rover Opportunity is closing in on what may be the grandest overlook and richest science trove of its long mission. During the next two weeks, the robotic geologist is likely to reach the rim of a hole in the Martian surface wider and deeper than any it has visited.
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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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The most famous Mars meteorite, the Allen Hills rock with its strange, cylindrical rock segments, may not be the most intriguing.     Astrobiology Magazine -- Perhaps the most famous of the martian meteorites was discovered at Allen Hills, Antarctica, and spawned a controversy about fossil-shapes and whether Mars could once have supported more favorable conditions than today...
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NASA&#39;s Mars rovers have returned new evidence for past water, pictures of Earthlike clouds seen for the first time from the planet&#39;s surface, and a rock that doesn&#39;t look like anything scientists have ever seen.
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NASA is set to launch a robotic  spacecraft next month that will dig into the soil near the  northern pole of Mars to check for conditions favorable to  microbial life now or in the planet&#39;s past.
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This much is known: At some point in Mars's past, at least one region of the planet was drenched in water. Ancient Mars provided a habitat suitable for life as we know it. What kind of organism might have lived there? And is life lying dormant there still, just waiting for things to warm up a bit?