U.S. Company Proposes Americium-241 Radioisotope Heating Solution for Spacesuits, Receives Early NASA Research Support
U.S.-based Zeno Power Systems has proposed a radioisotope heating concept for lunar extravehicular activities, planning to use Americium-241 (Am-241) to provide continuous passive warmth for astronauts during lunar nights and in permanently shadowed regions. The proposal has been selected for this year's NASA Innovative Advanced Concepts (NIAC) program, with the potential to receive up to $175,000 in early-stage research funding. The lunar surface environment is one of the key challenges for long-duration crewed missions. Data shows that lunar nights can last approximately two weeks, and extreme low temperatures will limit the duration of astronaut extravehicular activities in shadowed areas and at night. Even with new-generation spacesuits, their cold resistance remains limited...
2026-08-13
