Future and its affiliate partners may earn a commission when you purchase through links on our articles.
Image taken from one of Perseverance’s cameras. The rover is in the lower right corner of the image, with a long, windswept tire track in the reddish-brown dirt behind it. |Image source: NASA/JPL-Caltech
NASA has given its Perseverance Mars rover a powerful new ability to determine its exact location on the Red Planet without waiting for instructions from Earth, effectively giving the six-wheeled rover its own version of GPS.
Unlike Earth, Mars does not have a network of navigation satellites. Instead, robot tasks include will They have long relied on onboard sensors and cameras, images from orbiting spacecraft and guidance from mission teams millions of miles away to pinpoint their location.
“Imagine you are alone in a vast desert with no roads, no maps, and only one phone call a day asking ‘Where am I?'” Vandi Verma, a space robotics expert at the Jet Propulsion Laboratory and a member of the Perseverance engineering team, said in a report. video Released on February 18, an update was announced. “This is what NASA’s Perseverance rover will have to do on Mars for five years.”
This panorama from Perseverance consists of five pairs of Stereo Navigation Camera images, which the rover matched with orbital images to pinpoint its position on February 2, 2026, using a technique called Mars Global Positioning. |Image source: NASA/JPL-Caltech
“Achieving precise accuracy requires humans to return to Earth,” she added. “But not anymore.”
since logging in Jezero Crater In February 2021, the car-sized Perseverance tracked its location by analyzing geological features in images taken every few feet and accounting for wheel slip to estimate how far it traveled.
Small errors add up over time, and on longer trips, these errors can prevent the rover from determining its position by more than 100 feet (35 meters). If it calculates that it may be too close to hazardous terrain, the rover may stop early to await clarification from Earth, according to NASA statement.
“Humans have to tell it, ‘You’re not lost, you’re safe. Keep going,'” Verma said in a statement. “We know that if we solve this problem, the rover can go further every day.”
Since Mars is on average about 140 million miles (225 million kilometers) from Earth, communication delays make real-time control impossible, and such directional guidance can take a full day or more.
Now, with a new upgrade called Mars Global Positioning, Perseverance can match its own panoramic images to onboard orbital terrain maps, calculate its precise position and continue on its planned route without waiting for confirmation from Earth.
NASA says onboard algorithms complete the comparison in about two minutes and can pinpoint the rover’s position to within about 10 inches (25 centimeters), all without the help of human planners. This capability enables the rover to travel significantly furtherScientists say that increases the amount of terrain it can explore and the science it can conduct.
The team began developing the technology in 2023 and tested the algorithm against images from 264 previous rover stops. In each case, the software correctly identified the rover’s location, according to the agency. The system was used successfully during routine operations in early February and earlier this week.
“We are giving the rover a new capability,” Jeremy Nash, a robotics engineer at JPL who led the project under Verma, said in the statement. “This has been an open question in robotics research for decades, and it’s exciting to deploy this solution in space for the first time.”
The development comes just weeks after NASA announced that Perseverance was complete Completed first drive Fully planned by generative artificial intelligence on Mars.
In that test, the AI software analyzed the same imagery and terrain data used by human planners, including images from NASA Mars Reconnaissance Orbiter — Identify hazards such as rocks, steep slopes and boulder fields, then plot a safe route with assigned coordinates for the rover to follow.
This annotated orbital image depicts the artificial intelligence planned route (shown in magenta) and actual route (orange) taken by the Perseverance rover as it traveled through Jezero Crater on December 10, 2025. The drive was the second of two demonstrations showing that generative artificial intelligence can be incorporated into rover route planning. |Image source: NASA/Caltech Jet Propulsion Laboratory/UofA
Before transmitting commands to Mars, engineers tested the plan extensively using a detailed digital twin of the rover to ensure it could safely perform the drive, NASA said in a report. previous statement.
In fact, scientists say, Perseverance’s autonomous navigation capabilities have become so effective at detecting and maneuvering around obstacles that its range is increasingly limited by hazard avoidance and more by uncertainty about its precise location.
Verma said in a statement that such technology could help usher in a new era of faster, more autonomous exploration, not just on Mars but on other planets as well.
“It could be used by almost any other rover that travels fast and over long distances.”
