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NASA Is Testing a Nuclear Battery That Could Last 433 Years

Summary by Popular Mechanics
NASA spacecraft has used a plutonium isotope to stay afloat for decades, but americium-241 could last even longer.

2 Articles

OrigoOrigo
Right

An Inexhaustible Source of Energy Has Been Found: Batteries that Last for Centuries Could Be Possible

NASA is testing a new radioisotope power source that could last for centuries. Could we be closer to the era of batteries that last forever?

·Budapest, Hungary
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Popular MechanicsPopular Mechanics
Center

NASA Is Testing a Nuclear Battery That Could Last 433 Years

NASA spacecraft has used a plutonium isotope to stay afloat for decades, but americium-241 could last even longer.

Read Full Article
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Popular Mechanics broke the news in on Thursday, September 4, 2025.
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