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About

Jouni Saari is a leading researcher in space radiation physics, with a focus on understanding and mitigating the hazards of deep-space exploration. His most prominent work involves the first comprehensive space radiation measurements taken during NASA’s Artemis I lunar mission, a landmark study that has already garnered 30 citations since its 2024 publication. This research provides critical data on galactic cosmic rays and trapped particles, directly informing risk assessments for cancer, cataracts, and degenerative diseases faced by astronauts on long-duration flights. Saari’s major contribution lies in bridging the gap between theoretical radiation models and real-world deep-space measurements, offering empirical evidence that shapes spacecraft shielding design and mission planning. His work is essential for the future of human spaceflight, particularly as agencies aim for sustained lunar presence and eventual Mars missions. By quantifying the acute and chronic exposure risks from diverse radiation sources, Saari has established himself as a key figure in ensuring astronaut safety beyond low Earth orbit.