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NASA’s AstroRad Vest Cuts Radiation Dose by 40%

8/12/2026

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Summary

Story summary

NASA tested the 57-pound AstroRad plastic vest on Artemis I around the moon in 2022.
Jordan Houri of StemRad calculated a 60 percent dose drop for the August 1972 event (222 to 87.5 millisieverts) and a roughly 40 percent reduction for the October 1989 event because it targets marrow, lungs, gut, breasts and ovaries.
ISS tests showed crew could wear the vest for many hours, even while sleeping, with protection comparable to Orion’s storm shelter.

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Story summary

NASA tested the 57-pound AstroRad plastic vest on Artemis I around the moon in 2022.
Jordan Houri of StemRad calculated a 60 percent dose drop for the August 1972 event (222 to 87.5 millisieverts) and a roughly 40 percent reduction for the October 1989 event because it targets marrow, lungs, gut, breasts and ovaries.
ISS tests showed crew could wear the vest for many hours, even while sleeping, with protection comparable to Orion’s storm shelter.