https://www.asiaone.com/world/oh-brother-nasa-twins-study-shows-how-space-changes-human-body
COLORADO SPRINGS, COLORADO - An American astronaut experienced multiple biological changes in space but returned to normal - with some exceptions - after...
nasa twins studyoh brothershowsspacechanges
https://www.kjzz.org/2016-03-01/content-271779-nasa-twins-study-determine-effects-space-human-body
Astronaut Scott Kelly is scheduled to return to Earth on Tuesday night after spending 340 days in space. He and his identical twin brother, Mark Kelly of...
nasa twins studydetermineeffectsspacehuman
https://www.space.com/nasa-twins-study-kelly-astronauts-results.html
Results are finally published on NASA's Twins Study, which followed astronauts Scott and Mark Kelly as Scott spent nearly a year on the International Space...
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