Twins Study
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Discover the Science Goals
The landmark Twins Study brought ten research teams around the country together to observe what physiological, molecular, and cognitive changes could happen to a human from exposure to spaceflight. This was accomplished by comparing retired astronaut Scott Kelly while he was in space, to his identical twin brother, retired astronaut Mark Kelly, who remained on Earth. Click below to learn more about the goals of the study.
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Fun Facts and Shareables
Did you know that for nearly one year, retired astronaut Scott Kelly came into contact with only 12 humans while living aboard the International Space Station? Download the shareables below to discover more fun facts about the landmark Twins Study and the people who participated in it.
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Frequently Asked Questions
What was the NASA Twins Study? Why did NASA pursue it? What were the key findings of the investigation? Discover answers to these and other questions about this unique experiment.
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NASA’s Twins Study Results Published
NASA’s trailblazing Twins Study moved into the final stages of integrated research with the release of a combined summary paper…
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Latest Content
Stay up-to-date with the latest Twins Study content.
Blood samples from astronaut Scott Kelly taken during his one year mission in space arrived in the lab of NASA’s…
NASA’s trailblazing Twins Study moved into the final stages of integrated research with the release of a combined summary paper…
NASA’s Twins Study preliminary results have revealed that space travel causes an increase in methylation, the process of turning genes on…
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