NASA and the University of Leicester are exploring Americium-241 as a long-lasting alternative to Plutonium-238 for powering deep space missions
GS3Economy · S&T · Environment · Security· Space technology (ISRO, missions)· Prelims·
Why in news
NASA and the University of Leicester are exploring Americium-241 as a long-lasting alternative to Plutonium-238 for powering deep space missions.
Background
NASA is collaborating with the University of Leicester and Los Alamos National Laboratory to evaluate Americium-241. This isotope has a half-life of 433 years, significantly longer than the 88-year half-life of Plutonium-238 currently used in space nuclear batteries.
Facts for Prelims
- S&TAmericium-241: Nuclear isotope with a half-life of 433 years for space batteries
- S&TPlutonium-238: Current isotope used in space nuclear batteries with an 88-year half-life
- S&TLos Alamos National Laboratory: Research body evaluating production and safety of Americium-241
- FactPerseverance and Curiosity rovers: Spacecraft currently utilizing nuclear battery technology
For Mains
Q. Discuss the significance of nuclear battery technology in enabling long-duration deep space exploration and the safety considerations involved in handling radioactive isotopes.
Dimensions to cover in your answer
- Safety-Efficiency Trade-off: Balancing the extended lifespan of Americium-241 against the risks of radioactive material handling in space
- Technological Autonomy: Reducing reliance on solar power for missions beyond the inner solar system where sunlight is insufficient
Keywords: Nuclear Isotope · Deep Space Exploration · Radioactive Decay · Space Power Systems · Americium-241
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