In February 2021, the Perseverance rover landed in Mars’s ancient Jezero crater, exploring its riverbeds and deltas formed by long-gone water. After traveling nearly 18 miles over three and a half years, it reached a river valley with a notable rock called Cheyava Falls. Scientists believe a sample drilled from this rock may contain biosignatures indicating microbial life from Mars’s distant past. This discovery offers exciting insights into Mars’s potential habitability and history.