Astronaut Shane Kimbrough at Air and Space Museum

NASA astronaut Shane Kimbrough presents Marty Kelsey, STEM in 30 host, Smithsonian National Air and Space Museum (NASM), a montage with photos and a patch from Expedition 50, Tuesday, September 12, 2017 at Smithsonian's National Air and Space Museum in Washington. During Expedition 50, Kimbrough completed four spacewalks for a total of 39 hours outside the ISS, and concluded his 173-day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in April 2017. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Shane Kimbrough presents Marty Kelsey, STEM in 30 host, Smithsonian National Air and Space Museum (NASM), a montage with photos and a patch from Expedition 50, Tuesday, September 12, 2017 at Smithsonian's National Air and Space Museum in Washington. During Expedition 50, Kimbrough completed four spacewalks for a total of 39 hours outside the ISS, and concluded his 173-day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in April 2017. Photo Credit: (NASA/Aubrey Gemignani)

DCExpedition 49Expedition 50Shane KimbroughSmithsonian National Air and Space Museum NASM USAWashingtonMarty Kelsey