NASA's ERNEST Rover Travels 16 Miles in 37 Hours, 10 Times Faster Than Mars Rovers in Use Today

NASA tested ERNEST, a 4-foot rover prototype, across 16 miles of desert terrain in 37 hours—more than 10 times the speed of operational rovers like Curiosity, which averages 100 meters per hour. The autonomous navigation test on June 18, 2026, addressed a core constraint: current lunar and Mars missions move slowly because rovers must carefully map terrain and avoid hazards, limiting the ground they can cover during science missions.