You think the heat problem has solutions in space? Good luck! Unfortunately this is a harsh mistress. https://en.wikipedia.org/wiki/Stefan%E2%80%93Boltzmann_la

You think the heat problem has solutions in space? Good luck! Unfortunately this is a harsh mistress. https://en.wikipedia.org/wiki/Stefan%E2%80%93Boltzmann_law https://en.wikipedia.org/wiki/Stefan%E2%80%93Boltzmann_law https://en.wikipedia.org/wiki/Radiative_cooling https://en.wikipedia.org/wiki/Radiative_cooling You don't in fact have viable solutions to this problem when orbital launch prices are above like 100USD per ton, probably needs to be closer to 20USD per ton.