Gooday Gary,
Well thats sad news indeed, this will probably make NASA re-think about protection when they eventually go to Mars.
Its been known for a while now that pilots and cabin crew have increased incidents of Melanoma if they travel at high altitude for long periods of time, especially at the higher latitudes. Pregnant cabin crew are advised not to fly during their first trimester.
However the radiation dose they are getting is still small compared to what an Astronaut receives.
Regards
Bill
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