In the mudstones of a place called Bright Angel, Perseverance detected complex carbon molecules hundreds of times across two rocks, a find researchers called the only detection of macromolecular carbon on a natural rock surface on Mars Space Daily NASA rover finds record-breaking trove of complex organic molecules on Mars Live Science Nasa rover detects potential signatures of ancient microbial life on Mars The Guardian Perseverance Finds Complex Organic Compounds in Strange Mars Rocks ScienceAl