Astronaut sees rare books by Copernicus and Galileo

Astronaut Capt. Scott Kelly saw centuries-old astronomy books during a tour of the Linda Hall Library's rare books collection Thursday, Oct. 13, 2016. Kelly, who recently returned from spending a year in space, took part in NASA's Twins Study with
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Astronaut Capt. Scott Kelly saw centuries-old astronomy books during a tour of the Linda Hall Library's rare books collection Thursday, Oct. 13, 2016. Kelly, who recently returned from spending a year in space, took part in NASA's Twins Study with