Space missions depend on power systems that can function far away from sunlight and without maintenance. Solar panels ...
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 ...
For decades, deep space exploration has depended on a handful of obscure isotopes quietly heating small nuclear batteries on robotic probes. Now a different, even less familiar element is moving to ...
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