After seeing this question about a 135 camera being used during a space walk, I was wondering the following:
It is generally known that astronauts are exposed to increased radiation, also called space radiation.
Quote from NASA:
Astronauts are exposed to ionizing radiation with effective doses in the range from 50 to 2,000 mSv. 1 mSv of ionizing radiation is equivalent to about three chest x-rays. So that’s like if you were to have 150 to 6,000 chest x-rays.
Astronauts are protected from radiation by their spacesuits, but the camera does not seem to have any protective housing, as shown in these photos. As getting your film exposed with an x-ray machine is generally a bad idea, especially with higher ISO films, it would seem harmful for the film inside these 'space cameras' to be consistently exposed to high doses of radiation.
Still, photos from space missions evidently turned out fine. What is the reason for this? Does the radiation not harm the film, or is there a protective method not visible in the photos?