WASHINGTON, Oct. 24 (UPI) -- NASA scientists in Washington are re-thinking whether they missed life on Mars when they conducted initial Viking experiments 30 years ago.
The experiments -- in which samples were either vaporized or examined for for radioactive carbon -- may not have detected lower levels of organic life
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Despite the areas' desolate conditions -- torrid sun, frigid nights and little moisture -- researcher said these places sustain life, ABC said. But in the Viking probes tested samples, no life was found
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More recent probes of the Martian surface found evidence of water
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NASA researchers said the next two Martian probes, scheduled to land in 2008 and 2010
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