Violent impact on Mars left billions of craters - and an important clue. The 14 kilometer wide Corinto crater is likely to be the youngest giant crater.
Scientists believe that asteroids large enough to create a crater of this size only hit Mars every three million years. Corinto is a recent impact crater in Elysium Panitia that produced one of the most extensive systems of secondary craters on Mars. The impact created about two billion craters, of which the study mentions about 2 billion, south and southwest of Corinto.