![Did Astronaut Scott Kelly Stay in Space Too Long? [Video]](http://blogs.scientificamerican.com/blogs/cache/file/8FE570BA-C168-4B1F-9853807FABD14A23_small.jpg)
This video will make you wonder if a year in free-fall finally got to him... --
This video will make you wonder if a year in free-fall finally got to him... --
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This video will make you wonder if a year in free-fall finally got to him... --
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