It's both - mixture of exact commands + dead reckoning, and some semi-autonomous navigation (go to this rock). https://www.jpl.nasa.gov/edu/learn/video/mars-in

It's both - mixture of exact commands + dead reckoning, and some semi-autonomous navigation (go to this rock). https://www.jpl.nasa.gov/edu/learn/video/mars-in-a-minute-how-do-rovers-drive-on-mars/ https://www.jpl.nasa.gov/edu/learn/video/mars-in-a-minute-ho...