EE Impact
othermedium impact10/08/2026, 08:08:22Confidence 62/100

NASA's reliance on plutonium-238 for deep space missions highlighted in recent analysis

A recent article discusses the historical reliance of spacecraft beyond Jupiter on plutonium-238. It notes the US stopped producing the isotope in 1988 and only resumed production in 2015, with past reliance on Russian supplies.

Claims & verification status

Likely

The United States stopped producing plutonium-238 in 1988 and resumed production in 2015.

Likely

Prior to the resumption of production in 2015, the US relied on old reserves and Russian supplies for plutonium-238.

+1 more claim on the 7-day Pro trial.

Impact analysis

Who claims what

  • A recent article claims that every spacecraft sent to operate beyond Jupiter has depended on plutonium-238 — not independently verified.
  • The article claims the United States stopped producing plutonium-238 in 1988 and resumed production in 2015 — not independently verified.
manufacturinglogisticstechnologydefenseenergy

Our assessment

If accurate, these claims highlight the strategic importance of plutonium-238 for space missions and past interdependence between the US and Russia in this specialized supply…

Sources & evidence

articleNewsAPI aggregator(class B)original