<ul><li>The journey to Mars will subject astronauts to extended periods of exposure to radiation during their months-long travel through space.</li><li>Space radiation includes high-energy galactic cosmic rays and solar particle events that can damage DNA, increase cancer risk, and weaken the immune system.</li><li>NASA estimates that a mission to Mars could expose astronauts to radiation levels that exceed current career exposure limits.</li><li>Traditional shielding approaches are largely ineffective against galactic cosmic rays, and radiation levels vary depending on location and shielding configurations.</li></ul>

We Know How Much Radiation Astronauts Will Receive, But We Don’t Know How to Prevent it

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