re: Catch 22
Buck wrote: And to repeat my original view, I think it would be foolhardy to send astronauts on a 2-3 year mission to Mars if they have never had long duration off world practice.
Chris writes: And NASA has rules against doing long duration Moon or Mars currently. Because it sets expectable exposer levels low and have no interest in letting the astronauts decide their own risk assessment of cancer. It is a catch 22. I don't think any system of protection will placate this fear of theirs unless it is passive, weights nothing and in short is a miracle protection system.