According to a German scientist, Dirk Schulze-Makuch, NASA destroyed life on Mars 50 years ago when it dispatched two Viking landers to Mars.
According to a New Scientist investigation, a NASA mission over 40 years ago may have accidentally destroyed what would have been the first discovery of organic molecules on Mars.
This view from the Viking 2 shows Utopia Planitia on Mars in 1976. Some researchers think that the Viking lander's main instrument may have burned up organic molecules...
