NASA's Perseverance rover has set a new record for the longest distance driven by a wheeled vehicle on another planet, surpassing the previous mark for interplanetary travel. The milestone, announced by the mission team, highlights the rover's durability and the growing ambition of Mars surface exploration as it continues its journey across the Jezero Crater region.
Perseverance, which landed on Mars in February 2021, has been exploring the ancient river delta and crater floor in search of signs of past microbial life. The rover's odometer now exceeds the distance covered by any previous off-world rover, a testament to its robust design and the careful route planning by engineers at NASA's Jet Propulsion Laboratory. The previous record was held by the Opportunity rover, which traveled just over 45 kilometers during its 14-year mission.
The new driving record is not merely a number. It reflects the rover's ability to navigate challenging terrain, including sand dunes, rocky outcrops, and steep slopes, while avoiding hazards that could end the mission. Each drive is planned using high-resolution orbital imagery and onboard autonomous navigation, allowing Perseverance to cover ground efficiently even when communication delays prevent real-time control.
Mission scientists say the extended driving distance has already paid off scientifically. The rover has collected a diverse set of rock and soil samples, many of which are slated for return to Earth by a future Mars Sample Return campaign. The greater the distance traveled, the more geological variety the rover can sample, increasing the odds of finding evidence of ancient life or characterizing the planet's habitability.
Perseverance's driving record also serves as a benchmark for future missions. Engineers are using data from the rover's wheels, suspension, and power systems to refine designs for next-generation rovers that may travel even farther and operate for longer periods. The rover is powered by a radioisotope thermoelectric generator, which has allowed it to continue working through Martian winters and dust storms that would have ended solar-powered missions.
Meanwhile, the international exploration of Mars is set to expand with a new mission targeting the planet's mysterious moons. The Martian Moons eXploration (MMX) mission, led by the Japan Aerospace Exploration Agency (JAXA) in collaboration with NASA, the French space agency CNES, the German Aerospace Center (DLR), and the European Space Agency (ESA), is scheduled to launch from Tanegashima Space Center in Japan on October 20, 2026, at 4:41 a.m. local time.
MMX will be the first mission to collect a sample from the Martian moon Phobos and return it to Earth. Mars has two moons: Phobos, with an average diameter of 22.2 kilometers, and Deimos, with an average diameter of 12.4 kilometers. Despite numerous missions to the Red Planet, its moons remain largely unexplored, and their origin is still debated. They could be captured asteroids or debris ejected from a giant impact on Mars.
The MMX spacecraft will enter orbit around Mars in August 2027 and begin orbiting Phobos in September 2027. It will study both moons from a quasi-satellite orbit, then release a small rover named Idefix in early 2029 to analyze the surface of Phobos. The main probe will later land on Phobos to collect samples using a corer and a pneumatic sampler. The mission carries 11 scientific instruments, including high-resolution cameras and a radiation monitor.
The sample return capsule, about 60 centimeters in diameter, is expected to land in Australia in 2031. The samples will be transferred to JAXA's Institute of Space and Astronautical Science in Sagamihara, Japan, where they will be cataloged and made available for scientific study. Scientists hope the samples will answer key questions about the origin of the Martian moons and the history of the solar system.
As Perseverance continues to roll across Mars, setting new distance records, the upcoming MMX mission promises to add a new chapter to planetary exploration by bringing pieces of another world back to Earth.