John Bennett Herrington is a retired United States Naval Aviator, engineer and former NASA astronaut. In 2002, Herrington became the first enrolled member of a Native American tribe to fly in space.
Daniel Christopher Burbank is a retired American astronaut and a veteran of two Space Shuttle missions. Burbank, a Captain in the United States Coast Guard, is the second Coast Guard astronaut after Bruce Melnick.
William McMichael "Bill" Shepherd, , is an American former Navy SEAL, aerospace, ocean, and mechanical engineer, and NASA astronaut, who served as commander of Expedition 1, the first crew on the International Space Station. He is a recipient of the Congressional Space Medal of Honor.
Terry Jonathan "T. J." Hart is an American mechanical and electrical engineer, a retired United States Air Force lieutenant colonel and pilot, and former NASA astronaut. Hart served as a mission specialist on the STS-41-C mission, where tasks included operation of the shuttle Remote Manipulator System (RMS) arm to deploy the Long Duration Exposure Facility (LDEF) and Solar Max satellite.
George David Low was an American aerospace executive and a NASA astronaut. With undergraduate degrees in physics and mechanical engineering and a master's degree in aeronautics and astronautics, he worked in the Jet Propulsion Laboratory (JPL) at the California Institute of Technology in the early 80's, before being picked as an astronaut candidate by NASA in 1984. In addition to holding some technical assignments, he logged more than 700 hours in space, before he left NASA in 1996 to pursue a career in the private sector. He was the son of George M. Low, the manager of the Apollo Spacecraft Program Office, and later, the 14th president of Rensselaer Polytechnic Institute.
Michael James Massimino is an American professor of mechanical engineering at Columbia University and a former NASA astronaut. He is the senior advisor of space programs at the Intrepid Sea, Air & Space Museum.
John Sumter Bull, was an American naval officer and aviator, fighter pilot, test pilot, mechanical and aeronautical engineer, and NASA astronaut.
Douglas Harry "Wheels" Wheelock is an American engineer and astronaut. He has flown in space twice, logging 178 days on the Space Shuttle, International Space Station, and Russian Soyuz. On July 12, 2011, Wheelock announced that he would be returning to active duty with the United States Army in support of Operation Enduring Freedom. He is currently working with NASA to test the Orion spacecraft at the Glenn Research Center in Plum Brook, Ohio.
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. He is running unopposed and will serve a third 3-year term beginning in 2024.
Robert Louis Behnken is an American engineer, a former NASA astronaut, and former Chief of the Astronaut Office.
Michael Scott "Mike" Hopkins is a United States Space Force colonel and a former NASA astronaut. Hopkins was selected in June 2009 as a member of the NASA Astronaut Group 20. He made his first spaceflight as a Flight Engineer on Soyuz TMA-10M/Expedition 37/Expedition 38, from September 2013 until March 2014. He is the first member of his astronaut class to fly in space. Hopkins is the first astronaut to transfer to the U.S. Space Force, participating in a transfer ceremony on the International Space Station. Prior to his transfer, he served over 27 years in the United States Air Force.
Gregory Reid Wiseman is an American astronaut, engineer, and naval aviator. He served as Chief of the Astronaut Office until November 14, 2022.
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.
Christina Hammock Koch is an American engineer and NASA astronaut of the class of 2013. She received Bachelor of Science degrees in electrical engineering and physics and a Master of Science in electrical engineering at North Carolina State University. She also did advanced study while working at the Goddard Space Flight Center. Just before becoming an astronaut, she served at the National Oceanic and Atmospheric Administration as station chief for American Samoa.
Nicole Victoria "Duke" Aunapu Mann is an American test pilot and NASA astronaut. She is an F/A-18 Hornet pilot and a graduate of the US Naval Academy, Stanford University, and the US Naval Test Pilot School. She has over 2,500 flight hours in 25 types of aircraft and 200 carrier landings, and has flown 47 combat missions in Iraq and Afghanistan. Mann completed astronaut training in 2015 and was assigned in August 2018 to Boe-CFT, the first crewed test flight of the Boeing CST-100 Starliner, but subsequently reassigned to the SpaceX Crew-5, becoming the first female commander of a NASA Commercial Crew Program launch.
Kayla Jane Barron is an American submarine warfare officer, engineer, and NASA astronaut. Barron was selected in June 2017 as a member of the NASA Astronaut Group 22, and later qualified as an astronaut in 2020. Barron took part in her first spaceflight, SpaceX Crew-3, as part of the crew of Expedition 66/67, which launched to the International Space Station on November 10, 2021. Before joining NASA, Barron was a submarine warfare officer and Flag Aide to the Superintendent at the Naval Academy.
NASA Astronaut Group 23 was announced on December 6, 2021, with the class reporting for duty some time in 2022. Twelve astronaut candidates were selected, including seven men and five women.
Luke Delaney is a retired major in the United States Marine Corps and NASA astronaut candidate. Delaney is from DeBary, Florida.
Marcos Gabriel Berríos is a major in the United States Air Force and a NASA astronaut.
Deniz Melissa Burnham is a lieutenant in the United States Navy Reserve and NASA astronaut candidate.
