I read Apollo 12 returned with a camera fro a Moon probe which apparently carried S. mitis to the Moon, survived under those conditions, and was viable after returning to Earth.  How did NASA/CDC decide the S. mitis was not a lab contaminant.

It seems probable from recent research that the viable microbes were indeed contaminants.  The story of living microbes retrieved by the Apollo 12 astronauts from a previous Surveyor lander has been told many times and has been widely accepted as evidence for the ability of some microbes to survive space exposure.  New information, however, suggests that  these were contaminants probably introduced on the trip back to Earth from the Moon.

David Morrison

NLSI Interim Director

July 18, 2006

 

NESF-ELS 2021

NESF ELS Graphic

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SSERVI Team Science

Did you know?

The largest impact feature on the Moon is not one of the prominent "seas" that face the Earth, but the huge SPA Basin on the farside.

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