[RightWingAtheist]

There was actually a movie made in the 1950s called Riders to the Stars that was about the efforts of scientists to find a way to shield astronauts from the effects of cosmic rays. Although it has received derision from scientifically literate fans for gross scientific errors when it was trying to be accurate (the eventual solution: diamond cores found in the heart of meteorites!), maybe it should now be required viewing.

[RadioAstronomer]

Wow. Never saw that one. :-)

I figured I had seen every cheesy science fiction movie in history. LOL!

However, reading over the thread, I think folks are beginning to understand some of the problems of long duration spaceflight outside of the protective envelope surrounding the Earth.