“The isotope of interest for space is americium-241…Its half-life is a staggering 432 years, five times longer than plutonium-238.”

    • whaleross@lemmy.world
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      1 day ago

      My understanding of space engineering is that getting rid of heat is a bigger problem. Makes me wonder how much of efficiency of Stirling engines are lost due to extra weight and complexity for heat exchangers and radiators.