Imagine you're all alone, driving along in a rocky, unforgiving desert with no roads, no map, no GPS, and no more than one ...

Mars Global Localization (MGL), a tech similar to GPS on Earth, lets Perseverance nail down its coordinates to about 10 inches.

Nasa's Perseverance rover has completed five years on Mars and received a new autonomous navigation system. This technology allows the rover to pinpoint its location without help from Earth.

Nasa has developed a new technology that allows Perseverance, its most recently deployed Mars rover, to locate itself on the planet with an accuracy within 25cm.