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The Ohio native was selected to be a NASA astronaut in 1998 and has been on two ISS missions: Expeditions 14 and 15 in 2006 and 2007. And then 32 and 33 in 2012.
Former NASA astronaut Leroy Chiao on Hubble telescope 'single star' discovery. Duration: 3:02. Related Content. Similar programmes. By genre: News; By format: Discussion & Talk; ...
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