Jezero Crater is a 45 km wide crater located north of the Martian equator. It is located on the edge of Isidis Planitia, a flat plain. While the crater itself was created by the impact of meteorites, the flat plain was formed by the impact of an ancient asteroid in an event called Isidis event. The crater shows evidences of an ancient river system and it even has remnants of a delta. The Jezero Crater is the landing site of NASA’s Perseverance mission.