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Anyone Who Wants To Venture Into Space For A Year Will Get Taller Possibly Due To Lack Of Gravity; The Caps At The End Of The Chromosomes Will Get Longer; Will Experience Changes In Genetic Expressions And Bacteria Type In The Gut. These Results Are Expected To Aid NASA Plan Deep Space Missions.

NASA Twin Study new results: Mark and Scott Kelly – Business Insider

http://www.businessinsider.com/nasa-twin-study-new-results-mark-scott-kelly-2017-10

Scott and Mark Kelly are helping NASA study the effects of long-term spaceflight on the human body.