The first results from NASA's twins study -- comparing NASA Astronaut Scott Kelly in space with his brother Captain Mark Kelly on Earth -- are in http://cnn.it/2k34FT4 | CNN International
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NASA TWINS STUDY: NASA has released a new study on the effects of space flight on the human body, comparing identical twin astronauts Scott and Mark Kelly, and revealing that after a year in orbit, Scott’s DNA had mutated in some cells, with his cognitive scores dropping. David Muir reports. #TheIndex https://abcn.ws/2D9QIMt | ABC World News Tonight with David Muir
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NASA Twins Study reveals health effects of space flight
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Newly elected Arizona Sen. Mark Kelly and his twin brother took part in a groundbreaking NASA experiment for 4 years. Here's what we learned from it.
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