The Perseverance Rover has found evidence of organic compounds in the Jezero Crater on Mars. Although this isn’t the smoking gun proving once and for all that Mars once hosted life — these compounds could have also developed in nonbiological ways — the results hint at surprisingly complex organic conditions for the “key building blocks for life” on Earth’s neighbor. The study was published in Nature.The Perseverance Rover, the first to explore the Jezero Crater, has been investigating the area since February 2021. Researchers believe the basin once housed an ancient lake, including a delta from a river that once flowed into it. It’s one of the most likely regions to reveal leftover signs of life on Mars.Organic molecules like those observed in the Jezero Crater contain carbon and often hydrogen atoms. They’re the core components of life as we know it on Earth, although they can also develop abiologically. “They are an exciting clue for astrobiologists sinc