Killer robots from Earth wipe out Martians!

The horror...the horror

New studies suggest that the Viking Mars lander missions of the 1970's may have killed the very microbial life they were looking for.

Two NASA space probes that visited Mars 30 years ago may have stumbled upon alien microbes on the Red Planet and inadvertently killed them, a scientist theorizes in a paper released Sunday.

Awfully clumsy of us.