The redemption of Viking: Did the 50-year-old mission to Mars find life or not? How NASA’s 1975 mission to Mars led to decades of scientific controversy and confusion over the existence of life on ...

The key to solving the mystery of the Viking results is the discovery of perchlorate on the Martian surface in 2008. When you purchase through links on our site, we may earn an affiliate commission.

In 1976, two landers conducted life-detection missions on Mars and received a positive which never fully cleared off. The biology package on the Viking mission was constructed to answer one ...

Fifty years ago, NASA’s Viking missions to Mars made groundbreaking attempts to detect life on the Red Planet. While the missions initially returned negative results, a new study published in the ...