Evidence is mounting about what may be a wealth of organic molecules - a potential indicator of life - on Mars, with new findings from NASA's Perseverance rover suggesting the presence of a diversity of them in rocks at a locale where a lake existed long ago.
The latest evidence comes from an instrument called SHERLOC mounted on the six-wheeled rover's robotic arm that enables a detailed mapping and analysis of organic molecules. Researchers are reporting SHERLOC's findings from 10 places on two geological formations on the floor of Jezero crater.
They obtained evidence indicating the presence of organic molecules in multiple rock samples, including some collected for potential return to Earth for future analysis. The researchers noted that evidence of such molecules is not proof of life past or present on Mars, and that non-biological processes remain a more likely explanation.
