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spacedaily.com: https://spacedaily.com/j-scott-kelly-spent-a-year-in-orbit-while-his-identical-twin-brother-stayed-on-earth-and-when-he-came-home-nasa-discovered-his-dna-had-changed-in-ways-that-didnt-fully-reverse/

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Subject
K000377
Source
GDELT news Β· original
Published
Wednesday, May 20, 2026

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When Scott Kelly returned from 340 days aboard the International Space Station, NASA's twin study revealed that roughly seven percent of his gene expression had shifted in ways that never fully returned to baseline.

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