NASA solicits lunar radioisotope power

[Marlin]

NASA solicits lunar radioisotope power

https://www.ans.org/news/2026-09-10/article-8380/nasa-solicits-lunar-radioisotope-power/

[Core Content]

NASA has issued a request for proposals to develop high-efficiency radioisotope Stirling generators for lunar exploration missions. The initiative focuses on creating lightweight power systems capable of providing up to 150 watts of direct current in permanently shadowed regions where solar power is ineffective. This development expands the nuclear industry's role in aerospace applications and deep-space power infrastructure.

NASA has announced it is seeking proposals for five technological areas, including radioisotope power systems (RPSs), to support exploration missions with a near-term focus on a base at the south lunar pole.

The solicitation specifically seeks to support the research and development of higher-efficiency power conversion systems, such as radioisotope Stirling generators (RSGs), which it said "can reduce the amount of required fuel by a factor of three to four compared to current RPS technologies while also enabling the potential use of alternative fuels."

Read the full article at ans.org:
https://www.ans.org/news/2026-09-10/article-8380/nasa-solicits-lunar-radioisotope-power/