- NASA's Twins Study sent astronaut Scott Kelly to ISS for a year, while his identical twin Mark stayed on Earth. They found Scott's telomeres grew in length, his genes expressed themselves differently, his carotid artery walls grew thicker, and more. http://www.astronomy.com/news/2018/02/how-does-space-change-the-human-body 133 comments science
- NASA's Twins Study confirms being in space significantly alters how genes are expressed. http://www.astronomy.com/news/2018/02/how-does-space-change-the-human-body 102 comments space
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