Engineers at the Idaho National Laboratory, under the U.S. Department of Energy (DoE), have designed a compact nuclear fission reactor aimed at powering future lunar bases—with a test deployment targeted for the Moon by 2026. This innovative technology addresses key energy challenges for long-term human presence on the Moon and, ultimately, Mars.
Establishing sustainable bases on the Moon or Mars requires reliable, long-term energy sources. While solar panels are commonly deployed via shuttles, they fall short in harsh extraterrestrial environments. On Mars, dust storms and deep craters can block sunlight for extended periods, rendering solar unreliable. Batteries also degrade over time, complicating replacements in remote locations.
At the Idaho National Laboratory—a leading U.S. DoE facility specializing in advanced nuclear technologies—researchers are pioneering a compact nuclear reactor. As reported by Design and Development Today on July 27, 2020, the first prototype is slated for lunar testing.
NASA has pursued lunar reactor designs since the mid-2000s, targeting 10 kW output. After refining prototypes, they achieved a functional 5 kW reactor. In late July 2020, the DoE issued a request for proposals to advance this effort, focusing on fission-based surface power systems for extended human stays in space.
The program unfolds in phases: first, developing a proof-of-concept reactor; second, launching a demonstration unit to the Moon by 2026, including safe transport solutions. Success here could extend the technology to Mars, supporting NASA's Artemis program, which plans human lunar returns in 2024 via an initial orbital mini-station. Subsequent missions will establish permanent surface bases, though landing sites remain under evaluation.
