match it with other images taken in or built -- orbit and they can match the images. and that is new for 2020. just one of many of the great features of the rover. and it will take 300 scientists to operate the 2020 rover. >> do we have any idea where it will land. >> reporter: and it is fascinating. and the crater is and an comm a lake bed and that is where they will start the search for life. this is an instrument called sherlock that will be on that part of the mission. >> a clever name for that instrument. and we also couldn't help but