Exploring the moon will require rovers that can think for themselves

NASA is preparing for a groundbreaking mission to send three rovers to the moon, relying solely on autonomy to explore a patch of lunar ground. This Cooperative Autonomous Distributed Robotic Exploration (CADRE) mission will launch on NASA's IM-3 in late 2026, with the rovers landing on the moon's Earth-facing side. The rovers will operate as a coordinated team for about two weeks, without human intervention, and will be tasked with mapping the terrain and autonomously managing their own operations, such as assigning tasks and adjusting plans when needed.

If successful, CADRE would be the first time NASA has operated multiple rovers beyond Earth as a unified autonomous system. This achievement could pave the way for future missions to the lunar South Pole, where water ice in the form of ice is believed to exist within permanently shadowed craters. Extracting and utilizing this ice could potentially create a lunar economy centered around fuel depots and life support systems.

The CADRE mission aims to test whether autonomous robots can operate unsupervised for extended periods, even in challenging environments such as the lunar poles. These areas pose unique challenges, including communication blackouts due to crater rims obstructing signals, limited solar power due to long periods of darkness, and the unpredictable nature of sunlight as it moves from glare to shadow across the terrain.

Additionally, the moon's lack of GPS makes it difficult for rovers to pinpoint their exact location, and they must rely on their onboard sensors and cameras to build maps of their surroundings.

Moreover, the lunar surface is harsh, with fine, abrasive dust that can damage rover components and obscure cameras, creating further obstacles for autonomous navigation. Successful completion of CADRE could demonstrate that a team of robots could reliably perform long-term tasks without human oversight, a crucial step towards establishing a sustainable presence on the moon.

As China's Chang'e-7 mission prepares to launch towards the lunar South Pole, the U.S. will need to ensure its own autonomous rover teams are capable of working together effectively to stay competitive in this emerging frontier of space exploration.