Astronauts face a number of risks in space, cancer shouldn’t be one of them. (From 2021)
, who receive low doses of radiation over the courses of their careers. But NASA doesn’t have much data on the health effects of radiation from space on its astronauts.has been hosting astronauts for 20 years
Simple physics can tell what happens when a spacecraft collides with a piece of an old satellite or fast-moving astro-pebble, but it’s a lot more challenging to predict how the body will handle a burst of invisible solar particles or cosmic rays. Health issues like cancer can be triggered by many things, and radiation is only one one of them.
NASA hasn’t updated its cancer risk calculus for astronauts in more than a decade, and the agency wants to take advantage of more recent data from animal models and those long-term studies of medical and nuclear plant workers and bomb survivors, says J. D. Polk, NASA’s chief medical officer. Once NASA finalizes a new maximum radiation standard, engineers will use it to guide their blueprints in designing ways to protect astronauts during long-duration missions.
“Even if there is a whole lot of shielding, if there is a small amount of radiation over a long period of time, it’s going to be leading to cardiovascular disease,” Grande-Allen says. “There’s a lot we don’t know because we haven’t done this before.”
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