"When NASA’s Perseverance rover reached the inner edge of Mars’ Jezero Crater in September 2023, mission scientists were surprised by what they found."
https://www.jpl.nasa.gov/news/nasa-discovery-reveals-complex-water-systems-on-early-mars/?utm_source=join1440&utm_medium=email&utm_placement=newsletter&user_id=66c4c92f5d78644b3ac5d5b4