Yuri Ivanovich Malenchenko is a retired Russian cosmonaut. Malenchenko became the first person to marry in space, on 10 August 2003, when he married Ekaterina Dmitrieva, who was in Texas, while he was 240 miles (390 km) over New Zealand, on the International Space Station. As of December 2023, Malenchenko ranks third for career time in space due to his time on both Mir and the International Space Station (ISS). He is a former commander of the International Space Station.
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.
Peggy Annette Whitson is an American biochemistry researcher, retired NASA astronaut, former NASA Chief Astronaut, and an active Axiom Space astronaut. Whitson has a total of 675 days in space, more than any other American or woman.
Rex Joseph Walheim is a retired United States Air Force officer, engineer and NASA astronaut. He flew three Space Shuttle missions, STS-110, STS-122, and STS-135. Walheim logged over 566 hours in space, including 36 hours and 23 minutes of spacewalk (EVA) time. He was assigned as mission specialist and flight engineer on STS-135, the final Space Shuttle mission.
Fyodor Nikolayevich Yurchikhin is a Russian cosmonaut of Greek descent, engineer and RSC Energia test-pilot who has flown on five spaceflights. His first spaceflight was a 10-day Space Shuttle mission STS-112. His second was a long-duration stay aboard the International Space Station (ISS) as a flight engineer for Expedition 15; for this mission he was launched in the Soyuz TMA-10 spacecraft. He has undertaken two further long-duration stays aboard the ISS, as a crew member of Expedition 24 / 25. For this mission he was launched with the spacecraft Soyuz TMA-19, and he landed in November 2010, also with the Soyuz TMA-19 spacecraft. He served as Soyuz commander for his fourth mission aboard Soyuz TMA-09M, as flight engineer for Expedition 36 and ISS commander for Expedition 37. In April 2017, Yurchikhin launched on Soyuz MS-04 for the fifth spaceflight of his career, a six-month mission to the ISS as part of Expedition 51 and 52, for which he was the commander.
Edward Michael "Mike"/"Spanky" Fincke is an American astronaut who formerly held the American record for the most time in space. His record was broken by Scott Kelly on October 16, 2015.
Robert Shane Kimbrough is a retired United States Army officer and NASA astronaut. He was part of the first group of candidates selected for NASA astronaut training following the Space Shuttle Columbia disaster. Kimbrough is a veteran of three spaceflights, the first being a Space Shuttle flight, and the second being a six-month mission to the ISS on board a Russian Soyuz craft. He was the commander of the International Space Station for Expedition 50, and returned to Earth in April 2017. He is married to the former Robbie Lynn Nickels.
Major Paolo Angelo Nespoli is an Italian astronaut and engineer of the European Space Agency (ESA). In 2007, he first traveled into space aboard the Space Shuttle Discovery as a mission specialist of STS-120. In December 2010 he again traveled into space aboard the Soyuz TMA-20 spacecraft as an Expedition 26/27 flight engineer. Nespoli's third spaceflight was on board Soyuz MS-05, which launched in July 2017 for Expedition 52/53. He was also the European Space Agency's oldest active astronaut prior to his retirement in 2019.
Randolph James "Komrade" Bresnik is a retired officer in the United States Marine Corps and an active NASA astronaut. A Marine Aviator by trade, Bresnik was selected as a member of NASA Astronaut Group 19 in May 2004. He first launched to space on STS-129, then served as flight engineer for Expedition 52, and as ISS commander for Expedition 53.
Michael Reed Barratt is an American physician and a NASA astronaut. Specializing in aerospace medicine, he served as a flight surgeon for NASA before his selection as an astronaut, and has played a role in developing NASA's space medicine programs for both the Shuttle-Mir Program and International Space Station. His first spaceflight was a long-duration mission to the International Space Station, as a flight engineer in the Expedition 19 and 20 crew. In March 2011, Barratt completed his second spaceflight as a crew member of STS-133. Barratt will pilot the SpaceX Crew-8 mission in spring 2024.
Oleg Viktorovich Novitsky is a former Lieutenant Colonel in the Russian Air Force who logged over 700 hours of flight time and was awarded for bravery. He is currently serving as a Russian cosmonaut with Roscosmos and has participated in multiple expeditions, during which he has spent over 531 days in space.
Sergey Nikolayevich Ryzhikov, lieutenant colonel of Russian Air Force, is a Russian cosmonaut, selected in 2006. He is a veteran of two long duration space flights to the ISS.
Anton Nikolaevich Shkaplerov is a former Russian cosmonaut. He is a veteran of four spaceflights.
Aleksandr Mikhailovich Samokutyaev is a Russian politician and former cosmonaut. Samokutyaev served as a Flight Engineer for the International Space Station (ISS) long duration Expedition 27/28 missions. He also served as the Soyuz TMA-21 commander. He most recently served on the Soyuz TMA-14M Expedition 41/42 crew aboard the ISS. He was hired as a cosmonaut in the summer of 2003.
Colonel Luca Parmitano is an Italian astronaut in the European Astronaut Corps for the European Space Agency (ESA). He was selected as an ESA astronaut in May 2009. Parmitano is also a Colonel and test pilot for the Italian Air Force. He is the first Italian to command the International Space Station (ISS) during Expedition 61.
Michael Scott 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.
Scott David Tingle is a NASA astronaut. He was selected in June 2009 as a member of the NASA Astronaut Group 20, qualifying in 2011. Serving as a flight engineer as part of Expedition 54 and 55, Tingle launched into space on board Soyuz MS-07 in December 2017, and returned in June 2018. Tingle is a highly decorated naval pilot, having flown 51 types of aircraft over more than 4,500 flight hours, landed 750 aircraft with carrier arrestments, and fought in 54 combat missions.
Tyler Nicklaus Hague is a United States Space Force colonel and a NASA astronaut of the class of 2013. Selected to be a flight engineer on the International Space Station, his first launch was on Soyuz MS-10, which aborted shortly after take-off on October 11, 2018. His second launch, on March 14, 2019, was successful, taking him and his fellow Soyuz MS-12 crew members to join ISS Expedition 59/60.
Colonel, USAF 
