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Q&A Why would Fission be used in a world where Fusion reactors exist?

In my world, all terrestrial bodies in the solar-system of over 900 km size have a significant human presence. Earth-moon Travel is as common as an interstate road trip, and Interplanetary travel i...

11 answers  ·  posted 7y ago by System‭  ·  last activity 7y ago by System‭