Europe   European Space Agency   Space Exploration & Science Missions   Space Policy & International Cooperation  

ESA seeks European plant to produce americium-241 heaters for future spacecraft

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The European Space Agency has opened a call to establish a pilot plant producing European-manufactured americium-241 radioisotope heater units. The devices convert radioactive decay into heat, enabling spacecraft components to remain operational in cold environments during future exploration missions.

Discovered 2026-09-08T11:00:41.521696-07:00 | 2026-09-08T11:00:41.521696-07:00

Briefing

What Hype is tracking

  • A European production capability would support sovereign access to radioisotope heater units, a critical technology for keeping spacecraft systems warm during exploration missions.
  • The pilot plant is an early industrial step toward reducing reliance on non-European supply for specialized spacecraft hardware.
  • Americium-241 RHUs could expand Europe’s ability to develop and operate missions in cold, power-constrained environments.

Reported By

SpaceNews.com
Sources Tracked
1
First Seen
2026-09-08T11:00:41.521696-07:00
Latest Update
2026-09-08T11:00:41.521696-07:00
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Space

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