William Cameron McCool was an American naval officer and aviator, test pilot, aeronautical engineer, and NASA astronaut, who was the pilot of Space Shuttle Columbia mission STS-107. He and the rest of the crew of STS-107 were killed when Columbia disintegrated during reentry into the atmosphere. McCool was posthumously awarded the Congressional Space Medal of Honor.
Michael John Smith, was an American engineer and astronaut. He served as the pilot of the Space Shuttle Challenger when it was destroyed during the STS-51-L mission, when it broke up 73 seconds into the flight, and at an altitude of 48,000 feet (14.6 km), killing all seven crew members. Smith's voice was the last one heard on the Challenger voice recorder.
Scott Douglas "Scooter" Altman is a retired United States Navy Captain and naval aviator, engineer, test pilot and former NASA astronaut. He is a veteran of four Space Shuttle missions. His fourth mission on STS-125 was the last servicing mission to the Hubble Space Telescope. As of November 2022, he is the president of the Space operating group for ASRC Federal.
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.
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.
Frederick Hamilton "Rick" Hauck is a retired captain in the United States Navy, a former fighter pilot and NASA astronaut. He piloted Space Shuttle mission STS-7 and commanded STS-51-A and STS-26.
Dale Allan Gardner was a NASA astronaut, and naval flight officer who flew two Space Shuttle missions during the mid 1980s.
Captain Donald Edward Williams was an American naval officer and aviator, test pilot, mechanical engineer and NASA astronaut. He logged a total of 287 hours and 35 minutes in space.
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.
John Oliver Creighton, , is a former NASA astronaut who flew three Space Shuttle missions.
Richard Francis "Dick" Gordon Jr. was an American naval officer and aviator, test pilot, and NASA astronaut, and a football executive. He was one of 24 people to have flown to the Moon, as command module pilot of the 1969 Apollo 12 mission, which orbited the Moon 45 times. Gordon had already flown in space as the pilot of the 1966 Gemini 11 mission.
Kathryn Patricia "Kay" Hire is a former NASA astronaut and Captain in the U.S. Navy Reserve who has flown aboard two Space Shuttle missions.
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.
Frederick Wilford Sturckow is an engineer, retired United States Marine Corps officer, former NASA astronaut, and commercial spacecraft pilot. Sturckow is a veteran of four Space Shuttle missions. He flew on STS-88 and STS-105 as a pilot and STS-117 and STS-128 as a commander. All four missions docked with the International Space Station, making Sturckow one of three American astronauts to visit the station four times. Sturckow later was assigned to the Johnson Space Center as a CAPCOM. He left NASA in 2013 to become a pilot for Virgin Galactic.
Alan Goodwin "Dex" Poindexter was an American naval officer and a NASA astronaut. Poindexter was selected in the 1998 NASA Group (G17) and went into orbit aboard Space Shuttle missions STS-122 and STS-131.
Michael James Foreman is a retired U.S. Navy pilot and a NASA astronaut. While with NASA, Foreman was part of a mission that delivered the Japanese Experiment Module and the Canadian Special Purpose Dexterous Manipulator to the International Space Station. Foreman was also a crewmember of the STS-129 mission in November 2009. In 2018, he was elected mayor of Friendswood, Texas; he was re-elected to a second 3-year term in 2021.
Gregory Carl "Ray J" Johnson, , is a retired American naval officer and naval aviator, test pilot, aerospace engineer, and NASA astronaut. He spent his military career in both the regular United States Navy and the Navy Reserve. Johnson was the pilot on Space Shuttle mission STS-125, the final Hubble Space Telescope servicing mission.
Victor Jerome Glover is a NASA astronaut of the class of 2013 and pilot on the first operational flight of the SpaceX Crew Dragon to the International Space Station. Glover is a captain and F/A-18 pilot in the U.S. Navy and is a graduate of the U.S. Air Force Test Pilot School. He was a crew member of Expedition 64, and served as a station systems flight engineer.
Matthew Stuart Dominick is a US Navy test pilot and NASA astronaut. He has more than 1,600 hours of flight time in 28 aircraft, 400 carrier-arrested landings, 61 combat missions, and almost 200 flight test carrier landings.
Air Medal 
Captain, USN 
