Mastodawn

Orion ( #artemis ) is approx 110,000 miles from earth as of right now.

If you are a conspiracy theorist, that means that the poor souls on board have already signed their death warrants by spending over an hour transiting the Van Allen belts.

If you can do math and accept independently-verified facts, then you would know that they probably got about 4 mSv during the outbound transit, and that's about 1.5 years of normal "background" radiation experience by everyone on earth.

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Chao-c'

@jay_chi still, 1.5 years of natural background during just few hours is quite a lot. I wonder how well it is shielded inside spacecraft...

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jay_chi 4d ago

@xChaos It's 'about' the same as a CT scan 4-10 mSv. The yearly max allowable dose for a non-emergency worker in nuclear industry is 20-50 mSv. So the entire trip will probably be in the range of them being a nuclear worker for 1 year. (very fuzzy math, but reasonably valid).

The capsule does have shielding features such as water and structural materials. It also has active exposure monitoring, and some areas higher shielding in the case of a solar storm.