NASA's Perseverance rover is advancing our understanding of organic carbon found on Mars, vital for life's molecular backbone. Scientists have identified potential biosignatures in sedimentary rocks from Jezero Crater, possibly indicating past microbial life, dated between 3.2 and 3.8 billion years ago. NASA's Perseverance rover has provided new insights into the presence of organic carbon on Mars, an essential component for life as we know it. The discovery was made in the sedimentary rock within Jezero Crater, home to a once-existent body of water... [517 chars]