> Space-based nuclear energy is all based around RTGs, reactors have no place in space It is true that RTGs are the only type of nuclear power used in space no

> Space-based nuclear energy is all based around RTGs, reactors have no place in space It is true that RTGs are the only type of nuclear power used in space now, but that is more to do with type of craft we send to space rather than practical limitation of nuclear power in space. A large spacecraft will have enough surface area mount enough radiative heatsinks to dissipate the heat from a nuclear reactor. Designs exist that have the math worked out for this since the 50s.