I'm not sure if anyone's used nuclear-powered spacecraft closer to the sun http://www.google.com/search?q=rtg+sun+nasa+Ulysses http://www.google.com/search?q=r

I'm not sure if anyone's used nuclear-powered spacecraft closer to the sun http://www.google.com/search?q=rtg+sun+nasa+Ulysses http://www.google.com/search?q=rtg+sun+nasa+Ulysses Ulysses was in the news in 1996-1997 because NASA's Cassini-RTG decision was being criticized. The argument was that NASA's can't-use-solar-at-the-distance-of-Saturn argument didn't hold water in light of the fact that NASA even chose to put an RTG on a Sun explorer. it doesn't seem likely, since solar power is plentiful there. That was the crux of the NASA-can't-be-trusted argument.