A new paper suggests that BARSOOM may have been alive on the planet, and was killed in the Viking experiments.

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 ...

For life to even have a tiny chance of forming, two other substances need to be there when a planet’s core is formed, a new ...

Scientists combined lab radiation experiments, mathematical modeling and Curiosity data to ‘rewind the clock’ about 80 million years — the length of time the rock would have ...

The key to solving the mystery of the Viking results is the discovery of perchlorate on the Martian surface in 2008.