NASA's Perseverance rover has set a new record for the longest distance driven by any vehicle on another world, surpassing the previous record held by the Opportunity rover. On October 11, Perseverance’s odometer exceeded 28.06 miles (45.15 kilometers) on the surface of Mars, at which point mission controllers at NASA’s Jet Propulsion Laboratory (JPL) confirmed the distance at 28.1 miles.

Since landing in Jezero Crater on February 18, 2021, Perseverance has slowly traversed the crater’s floor, a 30-mile-wide basin that once held a lake in Mars's ancient past. The rover’s route initially focused on the crater’s rocky terrain, formed by molten rock after a meteor impact. This early exploration period allowed Perseverance to test its autonomous driving capabilities, which are superior to prior Mars rovers due to advanced onboard computing.

JPL officials noted that while they anticipated Perseverance would reach this milestone as early as August, the rover paused its journey for approximately two months to investigate light-colored rocks that may be among the oldest samples ever collected on Mars. This scientific detour highlights the mission’s focus on searching for signs of ancient microbial life.

Perseverance’s landing was marked by the parachute it deployed, which bore the phrase "Dare mighty things," reflecting the mission's bold ambition. Shortly after landing, the rover deployed a small helicopter named Ingenuity, which completed a historic series of powered flights on another planet. Ingenuity conducted 72 flights before sustaining rotor damage in January 2024. Throughout these flights, Perseverance relayed data and observed the helicopter’s performance, aiding in the development of aerial exploration techniques on Mars.

The rover’s driving technology includes self-navigation capabilities enabled by a high-speed computer chip, allowing Perseverance to autonomously plan routes between points, improving efficiency and safety. This autonomy represents a significant advancement over the rover Curiosity, launched eight years earlier, which operates with more direct control from Earth. In contrast, NASA’s earliest rover, Sojourner, which landed in 1997, was capable of traveling less than a fifteenth of a mile over 12 weeks and required precise commands for each movement.

After extensive exploration of the crater floor, Perseverance began traveling toward an ancient river delta within Jezero Crater in April 2022, a site believed to hold promising clues to Mars’s environmental history and potential past life. The collection of rock samples, one of the rover’s primary objectives, is of keen interest to scientists aiming to understand Mars’s geology and astrobiology.

NASA has yet to finalize long-term plans for Perseverance’s path beyond the delta region or for the eventual return of the samples it has gathered. A previously proposed Mars Sample Return mission, intended to bring samples back to Earth, was canceled due to high costs, though NASA has left open the possibility for future commercial involvement.

Originally certified to travel up to 20 kilometers (12.4 miles), Perseverance has exceeded this range by more than double. NASA now aims to extend the rover’s operational certification to 100 kilometers, potentially allowing for many more miles of exploration in the coming years.