Perseverance Rover Finds Significant Carbon on Martian Rock Surface

NASA's Perseverance rover has identified substantial organic carbon directly on the surface of rock formations within Jezero Crater on Mars. This marks the shallowest detection of organic matter on the Martian surface to date, prompting further investigation into its origins.

The carbon was found at a site called Bright Angel, located at the edge of an ancient river channel named Neretva Vallis. While organic carbon has been found on Mars previously, it typically required drilling or abrading rocks to access it. The direct surface detection is therefore a notable development.

"To our knowledge, that’s the shallowest detection of organic matter on Martian surface to date," stated Ashley E. Murphy, a researcher at the Planetary Institute and lead author of the study. On Earth, such levels of macromolecular carbon often suggest biological origins, but scientists emphasize the need for more data to confirm the source on Mars.

The discovery was made using SHERLOC (Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals), an instrument on Perseverance's robotic arm that uses a UV laser to analyze molecular bonds. Researchers are considering returning samples to Earth for more in-depth analysis to definitively ascertain the source of the carbon.