Of all the members of NASA's current crop of distinguished astronauts, only two have the unique distinction of being identical twin brothers. And now NASA is using an idea proposed by the brothers, Mark Kelly and Scott Kelly, to perform a study that's been confined to sci-fi up until now. Beginning in March 2015, the space agency will be monitoring the biological states of both twin brothers over the span of a year, with a twist: Scott will be aboard the International Space Station for the duration of that period, while Mark, who retired from NASA back in 2011, will remain back here on Earth.
via The Verge - All Posts http://www.theverge.com/2013/8/5/4591832/nasa-to-conduct-twin-astronaut-study-mark-and-scott-kelly
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