Gamma-Ray Evidence Suggests Ancient Mars Had Oceans

(PhysOrg.com) -- An international team of scientists who analyzed data from the Gamma Ray Spectrometer onboard NASA's Mars Odyssey reports new evidence for the controversial idea that oceans once covered about a third of ancient Mars.

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<p><a href="http://www.physorg.com/news146163055.html">Gamma-Ray Evidence Suggests Ancient Mars Had Oceans</a></p> <p>(PhysOrg.com) -- An international team of scientists who analyzed data from the Gamma Ray Spectrometer onboard NASA's Mars Odyssey reports new evidence for the controversial idea that oceans once covered about a third of ancient Mars. </p>