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Old June 25 2009, 04:13 PM   #24
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Re: manned Mission to Mars discussion

Daedalus12 wrote: View Post
I can tell you for sure that NASA scientists now think it's one of the major engineering challenges. It's a stumbling block in the sense that NASA won't do a manned mission to Mars until the magnitude of the radiation risk is well-known.
I may be incorrect, and they've actually done it, but wouldn't you have thought with all the probes being sent towards Mars and in that general direction, that they would have fitted the in-transit vehicle with some form of radiation sensors to get a feel for the amount of radiation present in the open vacuum?
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