Extraterrestrial Microbes: No Spacecraft Assembly Required?

NASA’s Search for Extraterrestrial Genomes –Was There an Earth-to-Mars Microbe Shuttle? | Digg Science :

NASA’s Search for Extraterrestrial Genomes –Was There an Earth-to-Mars Microbe Shuttle? | Digg Science :

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Extraterrestrial Microbes: No Spacecraft Assembly Required?