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IEEE Spectrum — Robotics · September 7, 2026

The Best Way to Explore Lunar Craters Is a Giant Robot Ball

Aerospace EngineeringRobotics
THE AI ANGLE
Planned autonomous adaptation of driving behavior across varying slopes

Researchers at Texas A&M University have developed RoboBall III, an inflatable spherical robot engineered to explore steep, hazardous lunar craters that are inaccessible to conventional rovers and astronauts. Driven by an internal two-actuator pendulum that shifts its center of mass, the system avoids tip-over risks and shields critical electronics from extreme thermal swings and lunar dust before launching samples out via small rockets. This architecture offers aerospace and robotics educators a tangible paradigm shift toward low-complexity, high-durability mobility mechanisms for extreme planetary exploration.

THE TEACHING ANGLE
The design provides an excellent case study in trade-offs between mechanical simplicity and task dexterity, prompting students to evaluate how reducing actuator count improves environmental survivability at the expense of precise sample targeting.

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