Today marks 15 years of humans on station. 1700+ research investigations. #15YearsOnStation https://t.co/9cjWjQ287n http://pic.twitter.com/YmnPgSLeM3
— Intl. Space Station (@Space_Station) November 2, 2015
via Twitter https://twitter.com/Space_Station
November 02, 2015 at 08:04PM
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