Earth Attacks Mars?: ; Early Nasa Probes May Have Unknowingly Killed Martian Microbes, Scientist Says

Summary

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WASHINGTON - Two NASA space probes that visited Mars 30 years ago might have stumbled upon alien microbes on the Red Planet and inadvertently killed them, a scientist theorizes in a paper released Sunday.

The problem was the Viking space probes of 1976-77 were looking for the wrong kind of life and didn't recognize it, the researcher said in a paper presented at a meeting of the American Astronomical Society in Seattle.

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Earth Attacks Mars?: ; Early Nasa Probes May Have Unknowingly Killed Martian Microbes, Scientist Says

This new report, based on a more expansive view of where life can take root, might have NASA looking for a different type of Martian life form when its next Mars spacecraft is launche...

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