Did Nasa's 1976 Viking mission accidentally erase Martian life?

Researcher says experiments might have unintentionally eradicated microbes residing within Martian rocks

from The News International - Sci-Tech https://ift.tt/1zcDNnY
Researcher says experiments might have unintentionally eradicated microbes residing within Martian rocks https://ift.tt/QoPKdIZ