Origins of life and evolution of the biosphere

, Volume 29, Issue 6, pp 625-631

First online:

Did Viking Discover Life on Mars?

  • Harold P. KleinAffiliated withSETI Institute

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A major argument in the claim that life had been discovered during the Viking mission to Mars is that the results obtained in the Labeled Release (LR) experiment are analogous to those observed with terrestrial microorganisms. This assertion is critically examined and found to be implausible.