NASA astronaut Terry Virts, second from left, and European Space Agency (ESA) astronaut Samantha Cristoforetti present montages from their missions onboard the International Space Station to NASA Deputy Administrator Dava Newman, left, and NASA Administrator Charles Bolden, Tuesday, Sept. 15, 2015 at NASA Headquarters in Washington. Photo Credit: (NASA/Bill Ingalls)

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Keywords: .., agency, bill, bolden, charles, cristoforetti, dava, european, headquarters, ingalls, nasa, newman, samantha, space, terry, usa, virts, washington