Astronaut twin study could provide valuable data for Mars mission

[news]

http://i.cbc.ca/1.3011251.1427405490!/fileImage/httpImage/image.jpg_gen/derivatives/16x9_460/twins-in-space.jpg American astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko will spend a year aboard the International Space Station. Meanwhile, Kelly’s identical twin brother Mark will be monitored on the ground in the first twin study of its kind.


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