John Howard Casper is a former American astronaut and retired United States Air Force pilot.
Andrew "Andy" Sydney Withiel Thomas, AO is an Australian and American aerospace engineer and a former NASA astronaut. He has dual nationality; he became a U.S. citizen in December 1986, hoping to gain entry to NASA's astronaut program. He is married to fellow NASA astronaut Shannon Walker.
James Donald "Wxb" Wetherbee, is a retired United States Navy 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.
Michael López-Alegría is an astronaut, test pilot and commercial astronaut with dual nationality, American and Spanish; a veteran of three Space Shuttle missions and one International Space Station mission. He is known for having performed ten spacewalks so far in his career, presently holding the second longest all-time EVA duration record and having the fifth-longest spaceflight of any American at the length of 215 days; this time was spent on board the ISS from September 18, 2006, to April 21, 2007. López-Alegría commanded Axiom-1, the first ever all-private team of commercial astronaut mission to the International Space Station, which launched on April 8, 2022, and spent just over 17 days in Earth's orbit.
Terrence Wade Wilcutt is a United States Marine Corps officer and a former NASA astronaut. He is a veteran of four Space Shuttle missions. Wilcutt was NASA's Chief of Safety and Mission Assurance, until his retirement from NASA in December 2020.
Michael Lloyd Coats is a former NASA astronaut, raised in Riverside, California. From December 2005 to December 2012, he served as Director of the Johnson Space Center in Houston, Texas.
STS-51 was a NASA Space Shuttle Discovery mission that launched the Advanced Communications Technology Satellite (ACTS) in September 1993. The flight also featured the deployment and retrieval of the SPAS-ORFEUS satellite and its IMAX camera, which captured spectacular footage of Discovery in space. A spacewalk was also performed during the mission to evaluate tools and techniques for the STS-61 Hubble Space Telescope (HST) servicing mission later that year. STS-51 was the first shuttle mission to fly a Global Positioning System (GPS) receiver, a Trimble TANS Quadrex. It was mounted in an overhead window where limited field of view (FoV) and signal attenuation from the glass severely impacted receiver performance. Full triple-redundant 3-string GPS would not happen until 14 years later with STS-118 in 2007.
Daniel Charles Brandenstein is the Executive Vice President and Chief Operating Officer of United Space Alliance. He is a former Naval Aviator, test pilot and NASA astronaut, who flew four Space Shuttle missions. He also served as Chief of the Astronaut Office from 1987 to 1992.
David Mathieson Walker, , was an American naval officer and aviator, fighter pilot, test pilot, and a former NASA astronaut. He flew aboard four Space Shuttle missions in the 1980s and 1990s.
Michael Allen Baker is a retired captain in the United States Navy, former NASA astronaut, and the International Space Station Program Manager for International and Crew Operations, at NASA's Johnson Space Center. He is responsible for the coordination of program operations, integration and flight crew training and support activities with the International Partners.
Linda Maxine Godwin is an American scientist and retired NASA astronaut. Godwin joined NASA in 1980 and became an astronaut in July 1986. She retired in 2010. During her career, Godwin completed four space flights and logged over 38 days in space. Godwin also served as the assistant to the director for exploration, Flight Crew Operations Directorate at the Johnson Space Center. Since retiring from NASA, she accepted the position of professor in the Department of Physics and Astronomy at the University of Missouri.
Frank Lee Culbertson Jr. is an American former naval officer and aviator, test pilot, aerospace engineer, NASA astronaut, graduate of the US Naval Academy, and member of the United States Astronaut Hall of Fame. He served as the commander of the International Space Station for almost four months in 2001 and was the only U.S. citizen not on Earth when the September 11 attacks occurred.
Thomas David Jones is a former United States astronaut. He was selected to the astronaut corps in 1990 and completed four Space Shuttle flights before retiring in 2001. He flew on STS-59 and STS-68 in 1994, STS-80 in 1996, and STS-98 in 2001. His total mission time was 53 days 48 minutes. He works as a planetary scientist, space operations consultant, astronaut speaker, and author.
James Hansen Newman is an American physicist and a former NASA astronaut who flew on four Space Shuttle missions.
Col. Yuri Ivanovich Onufrienko is a retired Russian cosmonaut. He is a veteran of two extended spaceflights, aboard the space station Mir in 1996 and aboard the International Space Station in 2001–2002.
Carl Erwin Walz is a retired NASA astronaut currently working for Orbital Sciences Corporation's Advanced Programs Group as vice president for Human Space Flight Operations. Walz was formerly assigned to the Exploration Systems Mission Directorate at NASA Headquarters in Washington, D.C. He was the Acting Director for the Advanced Capabilities Division in the Exploration Systems Mission Directorate, and was responsible for a broad range of activities to include Human Research, Technology Development, Nuclear Power and Propulsion and the Lunar Robotic Exploration Programs to support the Vision for Space Exploration.
Peter Jeffrey Kelsay Wisoff is an American physicist and former NASA astronaut. Wisoff qualified as mission specialist and flew in four Space Shuttle missions, with his first launch in 1993 and his last in 2000.
STS-116 was a Space Shuttle mission to the International Space Station (ISS) flown by Space Shuttle Discovery. Discovery lifted off on December 9, 2006, at 20:47:35 EST. A previous launch attempt on December 7 had been canceled due to cloud cover. It was the first night launch of a Space Shuttle since STS-113 in November 2002.
Douglas Gerald Hurley is an American engineer, former Marine Corps pilot and former NASA astronaut. He piloted Space Shuttle missions STS-127 and STS-135, the final flight of the Space Shuttle program. He launched into space for the third time as commander of Crew Dragon Demo-2, the first crewed spaceflight from American soil since STS-135 and became, together with Bob Behnken, the first astronaut in history launching aboard a commercial orbital spacecraft. He was also the first Marine to fly the F/A-18 E/F Super Hornet. His call sign is "Chunky", and he was sometimes referred to by this name on the communication loops.
STS-68 was a human spaceflight mission using Space ShuttleEndeavour that launched from Kennedy Space Center, Florida on September 30, 1994.
