NASA Reaffirms 100-Kilowatt Moon Reactor, Targets Mars Nuclear Craft by 2028
Updated
Updated · Yahoo · May 19
NASA Reaffirms 100-Kilowatt Moon Reactor, Targets Mars Nuclear Craft by 2028
5 articles · Updated · Yahoo · May 19
Jared Isaacman in January reaffirmed NASA’s plan to deploy lunar fission power, and in March said the agency aims to launch its first nuclear-electric Mars spacecraft by the end of 2028.
100 kilowatts is the new target for the moon reactor—up from earlier 40-kilowatt work—and NASA sees fission as essential because solar power cannot sustain a permanent base through the two-week lunar night.
The 2028 Mars mission, Space Reactor-1 Freedom, is meant to test nuclear fission systems in deep space before NASA attempts a lunar surface reactor targeted for 2030.
Engineers say launch safety, vacuum cooling, micrometeorites and moonquakes remain major design hurdles, though experts broadly view a lunar reactor as feasible if NASA avoids rushing development.
China and Russia are also pursuing a lunar reactor by 2035, raising the stakes as nuclear-powered bases could shape access, safety norms and de facto control around the moon’s south pole.
With budget cuts and delays, is the 2030 lunar reactor goal a feasible plan or an empty promise?
Could a new space race for lunar nuclear power repeat the catastrophic mistakes of the Cold War?
What prevents the Moon from becoming a lawless frontier if nations can claim territory with nuclear 'keep-out zones'?
Powering the Moon and Beyond: NASA’s 100kW Reactor, SR-1 Freedom, and the New Space Nuclear Era
Overview
NASA is accelerating efforts to establish a permanent human presence on the Moon by deploying a 100-kilowatt nuclear reactor by 2030, a move seen as essential for overcoming the harsh lunar environment and enabling long-duration missions. This initiative is backed by high-level government strategies, including directives from the Trump administration and strong advocacy from leaders like OSTP Director Michael Kratsios, who highlight nuclear power’s role in surviving lunar nights and supporting deeper space exploration. NASA is actively engaging industry partners and advancing both surface power and propulsion technologies, aiming to secure American leadership in the new era of space exploration.