A small robotic rover has played a crucial role in solving one of the biggest questions surrounding Japan’s historic moon mission. The palm-sized robot helped scientists determine what went wrong after Japan’s SLIM lunar lander touched down on the Moon.
New findings published in a scientific journal revealed that the rover, known as LEV-2, successfully explored the lunar surface and captured images that provided valuable insight into the lander’s condition after touchdown.
The rover was deployed shortly after the SLIM spacecraft landed on the Moon in January 2024. While Japan became the 5th country to achieve a soft lunar landing, mission teams soon discovered that the lander was unable to generate enough power, creating uncertainty about what had happened.
LEV-2, a shape-shifting robot that can transform from a spherical form into a small wheeled vehicle, travelled across the lunar surface and photographed the surrounding area. One of its most important images revealed that the SLIM lander had come to rest upside down. This discovery helped engineers understand why the spacecraft’s solar panels were not operating as expected.
Despite functioning for only around 100 minutes, the rover exceeded expectations. It transmitted information through a companion robot called LEV-1 before communication was eventually lost.
Researchers said the mission demonstrated the value of small autonomous robots in space exploration. The project successfully tested advanced technologies including autonomous navigation, wireless communication, image processing, and shape-adaptive mobility systems. These capabilities could support future missions to the Moon, Mars, and other planetary bodies.
Scientists believe the success of LEV-2 highlights how smaller and more affordable robotic systems can work alongside larger spacecraft, providing additional support and critical information during future space missions.
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