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title: We’ve flown a radiation-blocking vest to the Moon and...
description: An Israeli-American startup called StemRad tested a wearable radiation-shielding vest, AstroRad, by flying it aboard NASA's uncrewed Artemis I mission to the...
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og:description: An Israeli-American startup called StemRad tested a wearable radiation-shielding vest, AstroRad, by flying it aboard NASA's uncrewed Artemis I mission to the...
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# We’ve flown a radiation-blocking vest to the Moon and back, and it worked

**[Ars Technica](https://daily.dev/sources/arstechnica)** · 2 min read · 0 upvotes · 0 comments

## Summary

An Israeli-American startup called StemRad tested a wearable radiation-shielding vest, AstroRad, by flying it aboard NASA's uncrewed Artemis I mission to the Moon and back. Using the flight data, the team calculated the vest would shield an astronaut from a solar storm about as effectively as Orion's dedicated onboard radiation shelter, suggesting personal shielding garments could be a mass-efficient alternative to shielding the entire spacecraft.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://arstechnica.com/science/2026/08/weve-flown-a-radiation-blocking-vest-to-the-moon-and-back-and-it-worked>

## Questions this post answers

### How well did the AstroRad radiation-shielding vest perform compared to Orion's spacecraft shelter?

The AstroRad vest performed roughly as well as Orion's heavily shielded onboard shelter, based on flight data collected during the uncrewed Artemis I mission to the Moon and back. StemRad's team used that data to model how the vest would hold up during an actual solar storm, finding comparable protection to the crew shelter astronauts were meant to use.

_Space radiation shielding research like this shows up alongside other engineering deep dives on daily.dev._

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---

Tags: [#nasa](https://daily.dev/tags/nasa)

[View this post on daily.dev](https://daily.dev/posts/we-ve-flown-a-radiation-blocking-vest-to-the-moon-and-back-and-it-worked-34vr5jzpg)

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