- There were metal coupons placed in the reactors at the beginning that they pull out occasionally and test all the time to see if the vessel is still ok to run

- There were metal coupons placed in the reactors at the beginning that they pull out occasionally and test all the time to see if the vessel is still ok to run. So far so good. Other equipment can be maintained or replaced. - Nuclear power is the only energy source I'm aware of that internalizes all of its waste. Commercial nuclear sits in dry casks which have never, to my knowledge, injured or killed a single person. C.f. fossil and biofuel waste which kills 8 million people per year (!) - See fossil and biofuel externalities above. When you consider all these accidents, the safety of nuclear is still on par with wind and solar. https://ourworldindata.org/safest-sources-of-energy https://ourworldindata.org/safest-sources-of-energy - Nuclear energy is renewable. There's enough uranium in seawater to power breeders for millions of years, and that replenishes continuously through runoff and plate tectonics for billions of years (~as long as the sun will run). http://large.stanford.edu/publications/coal/references/docs/pad11983cohen.pdf http://large.stanford.edu/publications/coal/references/docs/... For space, Voyager 1 is still sending nuclear-powered signals back from beyond the solar system. It was launched in 1977 Nuclear energy does have some pretty legitimate physical advantages in space thanks to good old E=MC²