We've flown a radiation-blocking vest to the Moon and back, and it worked
Summary
A company named StemRad developed a wearable vest called AstroRad that blocks radiation for astronauts. NASA tested the vest on the Artemis I mission to the Moon, and data shows it could protect astronauts from dangerous solar radiation almost as well as heavy spacecraft shelters.Key Facts
- Solar storms emit radiation that can harm astronauts on Moon or Mars missions because space lacks Earth’s protective atmosphere and magnetic field.
- Traditional spacecraft shielding is heavy and difficult to use efficiently.
- StemRad created a vest that focuses on protecting critical body areas with high radiation sensitivity, like bone marrow and reproductive organs.
- The vest uses a plastic material called high-density polyethylene (HDPE), which has good radiation-blocking properties due to its hydrogen content.
- The design uses hexagonal rods to balance protection with comfort and freedom of movement.
- The vest was tested on NASA’s uncrewed Artemis I mission, flying to the Moon and back.
- Data from this test showed the vest reduces radiation exposure by about 60% in key areas without covering the entire body.
- This approach may offer a practical way to protect astronauts during solar storms without adding heavy shielding to spacecraft.
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