By "nuclear battery" do they just mean the same kind of battery we've been using in spacecraft for over 70 years? https://en.wikipedia.org/wiki/Radioisotope_th

By "nuclear battery" do they just mean the same kind of battery we've been using in spacecraft for over 70 years? https://en.wikipedia.org/wiki/Radioisotope_thermoelectric_generator#History https://en.wikipedia.org/wiki/Radioisotope_thermoelectric_ge...