NASA rover detects potential signatures of ancient microbial life on Mars
4 hours ago
- #astrobiology
- #Mars exploration
- #organic carbon
- Perseverance rover detected macromolecular carbon (MMC) in Martian mudstones from the Bright Angel outcrop in Jezero crater.
- MMC can originate from biological sources (e.g., fossilized microbes) or abiotic processes (e.g., water-rock reactions, meteorites), not confirming past Martian life.
- The findings add to evidence of ancient habitability and widespread organic availability on Mars, based on similar discoveries by Curiosity rover.
- NASA's rovers cannot determine the biotic or abiotic origin of the carbon; definitive analysis requires returning samples to Earth laboratories.
- NASA's Mars sample return mission, delayed to the 2030s after being scrapped, aims to bring rocks for testing, with China targeting a 2031 return.