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.

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 ...

In a quiet corner of an ancient riverbed on Mars, a speckled rock has pushed the search for extraterrestrial life into its most tantalizing phase yet. NASA now says the layered stone, drilled by the ...

On Mars, it’s the little things that hint at past life. In 2025, tiny details in rocks across the Martian surface have revealed some of the most exciting clues yet that there may once have been ...