Tuesday, November 5, 2013

Chris Hadfield on how eyesight is affected in space

http://www.youtube.com/v/IKVjUCN0YPw?version=3&autohide=1&autohide=1&showinfo=1&feature=share&autoplay=1&attribution_tag=hsDFb9DK0GufwSo7HannuQ
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