NASA's Perseverance rover has driven farther than any machine on another world. On Sol 2006 (Oct. 11, 2026), its odometer read 45.22 kilometers (28.10 miles), a new record for distance driven on another celestial body, NASA's blog reports, in a post by Vandi Verma, who leads robotic operations engineering at JPL. It matters because the tricks that got it there are the ones future Mars and Moon drivers will want.
The record came almost by accident. Two months earlier, on Sol 1947, the rover sat about 200 meters short, a gap one drive using its Autonomous Navigation (AutoNav) system could have covered. But Perseverance had landed in a scientifically rich spot and spent its time on short hops, abrading rock and studying ancient outcrops up close. When it finally moved on, it sailed past the mark.
Looser rules for rough ground
Boulder fields and steep slopes pushed the team to relax its own driving guidelines. After thousands of simulations, they raised the rover's tilt limit to 24 degrees and cut the required clearance under its belly pan to 20 centimeters (about 7.9 inches). They also updated braking software to avoid rock hazards, nearly doubled steer motor current limits, added "dynamic slip tables" to model expected wheel slip, and used cross-slope driving to grip exposed bedrock.
A GPS substitute on a world without GPS
The most interesting upgrade is onboard Global Localization. It reuses the fast commercial processor inside the Ingenuity helicopter's base station to compare ground images with orbital ones and work out where the rover is at the end of a drive, "as though we had GPS," in Verma's words. That lets Perseverance go farther without waiting on humans.
There was a catch. That coprocessor isn't hardened against radiation, which can cause "transient bit flips" in memory, so the team built a software-based fix.
Verma says the rover keeps climbing the crater rim and that the next leap in autonomous exploration "is just getting started". The post doesn't say how far the rover is expected to go next, so watch for the next blog update.
Should rovers be trusted to pick more of their own routes if it means fewer check-ins with Earth?
Sources
- 1.Tracks Along the Longest Drive on Another World - NASA Science · NASA Science
Reported by the WattsUpNext desk from the sources linked below. Spot an error? Tell us at corrections@wattsupnext.com.
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