The moment nuclear material is produced, processed or purified, it sets off a hidden countdown, marked by the half-life of ...
Morning Overview on MSN
NASA’s plutonium-238 supply crunch could limit future deep-space missions
A rare radioactive isotope stands between NASA and its next generation of deep-space exploration. Plutonium-238, the fuel ...
DOE’s efforts to manage surplus Pu-239 have been guided by the recommendations of a 1994 National Academy of Sciences study of plutonium disposition. The study made four specific recommendations (NAS, ...
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