Jeffrey Nels Williams is a retired United States Army officer and a NASA astronaut. He is a veteran of four space flights and formerly held the American record for most days spent in space, which was surpassed in April 2017 by his colleague Peggy Whi…
Jennifer Sidey-Gibbons hails from Calgary, Alberta. She holds an honors bachelor’s degree in mechanical engineering from McGill University in Montreal and a doctorate in engineering from the University of Cambridge. While at McGill, she conducted res…
Jeremy Roger Hansen is a Canadian astronaut with the Canadian Space Agency (CSA). He was selected to join the CSA in the 2009 CSA selection….
Jerome “Jay” Apt III, Ph.D. (born April 28, 1949 in Massachusetts) is an American astronaut and professor at Carnegie Mellon University. Before he became an astronaut, Apt was a physicist who worked on the Pioneer Venus 1978 space probe project, and …
Jerry Lynn Ross is a retired United States Air Force officer and a former NASA astronaut. He is a veteran of seven Space Shuttle missions, making him the joint record holder for most spaceflights (a record he shares with Franklin Chang-Diaz). His pap…
Jerry Michael Linenger is a retired Captain in the United States Navy Medical Corps, and a former NASA astronaut who flew on the Space Shuttle and Space Station Mir….
Jessica Ulrika Meir is Assistant Professor of Anesthesia at Harvard Medical School, Massachusetts General Hospital, Boston, following postdoctoral research in comparative physiology at the University of British Columbia. She has studied the diving ph…
Jessica Andrea Watkins is an American geologist, former international rugby player, and a NASA astronaut of the class of 2017….
Jessica Wittner is a US Navy commander from California with a distinguished career serving on active duty as a naval aviator and test pilot. She holds a Bachelor of Science in aerospace engineering from the University of Arizona, and a Master of Scie…
Jim Kitchen is a teacher, entrepreneur, and world explorer who has visited all 193 U.N.-recognized countries….
James Arthur Lovell Jr. is a former NASA astronaut, Naval Aviator, and retired Navy captain. Lovell is known for being the commander of the ill-fated Apollo 13 mission, which suffered a critical failure en route to the Moon but was brought back safel…
James Donald “Wxb” Wetherbee is an American former naval officer and aviator, test pilot, aerospace engineer, and NASA astronaut. He is a veteran of six Space Shuttle missions and is the only American to have commanded five spaceflight missions….
Jing Haipeng (simplified Chinese: 景海鹏; traditional Chinese: 景海鵬; pinyin: Jǐng Hǎipéng; born October 24, 1966) is a Chinese pilot and astronaut selected as part of the Shenzhou program. A fighter pilot in the People’s Liberation Army Air Force, he was…
Joan Elizabeth Higginbotham is an American engineer and a former NASA astronaut. She flew aboard Space Shuttle Discovery mission STS-116 as a mission specialist….
Joe Henry Engle is an American pilot who served in the United States Air Force, test pilot for the North American X-15 program, aeronautical engineer, and a former NASA astronaut. As of 2018, he is the last living pilot of the X-15 program.

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