I was reading Australian Sky and Telescope's article on Van Allen Belts( the radiation surrounding the earth), and the same day caught the movie Apollo 13. The movie mentioned that John Swigert died of cancer. He in fact died of bone cancer(I don't know what type) at the age of 51.
Does anyone know if his illness was related to his exposure to radiation in space, or know of
any data on astronauts health vs. space travel.