[{"n": "Joseph P. Allen", "u": "/e/spacewalkers/joseph-p-allen/", "s": "American physicist and NASA astronaut who flew on STS-5 and STS 51-A."}, {"n": "Oleg Artemyev", "u": "/e/spacewalkers/oleg-artemyev/", "s": "Russian cosmonaut and veteran of three ISS missions."}, {"n": "Gerald Carr (astronaut)", "u": "/e/spacewalkers/gerald-carr-astronaut/", "s": "Commander of Skylab 4 and record-setting space endurance."}, {"n": "Christopher Cassidy", "u": "/e/spacewalkers/christopher-cassidy/", "s": "NASA astronaut, Navy SEAL, and 500th person in space."}, {"n": "Leroy Chiao", "u": "/e/spacewalkers/leroy-chiao/", "s": "American astronaut who commanded Expedition 10 on the ISS."}, {"n": "Michael R. Clifford", "u": "/e/spacewalkers/michael-r-clifford/", "s": "U.S. Army officer, NASA astronaut, and Parkinson's disease advocate."}, {"n": "Frank L. Culbertson Jr.", "u": "/e/spacewalkers/frank-l-culbertson-jr/", "s": "Commander of ISS during 9/11 attacks."}, {"n": "Robert Curbeam", "u": "/e/spacewalkers/robert-curbeam/", "s": "NASA astronaut and record holder for four spacewalks on one flight."}, {"n": "Takao Doi", "u": "/e/spacewalkers/takao-doi/", "s": "Japanese astronaut, first to spacewalk and throw a boomerang in space."}, {"n": "Alvin Drew", "u": "/e/spacewalkers/alvin-drew/", "s": "200th person to walk in space; final African-American on a Space Shuttle."}, {"n": "Vladimir Dzhanibekov", "u": "/e/spacewalkers/vladimir-dzhanibekov/", "s": "Soviet cosmonaut who discovered the Dzhanibekov effect."}, {"n": "Ronald Evans (astronaut)", "u": "/e/spacewalkers/ronald-evans-astronaut/", "s": "Apollo 17 Command Module Pilot and deep space EVA record holder."}, {"n": "Andrew J. Feustel", "u": "/e/spacewalkers/andrew-j-feustel/", "s": "NASA astronaut and geophysicist with three spaceflights."}, {"n": "Michael Fincke", "u": "/e/spacewalkers/michael-fincke/", "s": "NASA astronaut with nine spacewalks and over 549 days in space."}, {"n": "William Frederick Fisher", "u": "/e/spacewalkers/william-frederick-fisher/", "s": "Physician and NASA astronaut who flew on STS-51-I."}]