Robert Brent "Bob" Thirsk, is a Canadian retired engineer and physician, and a former Canadian Space Agency astronaut. He holds the Canadian record for the most time spent in space. He became an officer of the Order of Canada (OC) in 2013 and was named to the Order of British Columbia (OBC) in 2012.
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.
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 Whitson. He still holds the record of the longest time in space for an American man.
Scott Joseph Kelly is an American engineer, retired astronaut, and naval aviator. A veteran of four space flights, Kelly commanded the International Space Station (ISS) on Expeditions 26, 45, and 46.
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.
Soichi Noguchi is a Japanese aeronautical engineer and former JAXA astronaut. His first spaceflight was as a mission specialist aboard STS-114 on 26 July 2005 for NASA's first "return to flight" Space Shuttle mission after the Columbia disaster. He was also in space as part of the Soyuz TMA-17 crew and Expedition 22 to the International Space Station (ISS), returning to Earth on 2 June 2010. He is the sixth Japanese astronaut to fly in space, the fifth to fly on the Space Shuttle, and the first to fly on Crew Dragon.
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.
Timothy John "T. J." Creamer is a NASA flight director, retired astronaut and a colonel in the United States Army. Creamer was born in Fort Huachuca, Arizona, but considers Upper Marlboro, Maryland, to be his hometown. He is married to the former Margaret E. Hammer. They have two children.
Shannon Walker is an American physicist and a NASA astronaut selected in 2004. She launched on her first mission into space on June 25, 2010, onboard Soyuz TMA-19 and spent over 163 days in space.
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.
Thomas Henry Marshburn is an American physician and a former NASA astronaut. He is a veteran of three spaceflights to the International Space Station and holds the record for the oldest person to perform a spacewalk at 61 years old.
Akihiko Hoshide is a Japanese engineer, JAXA astronaut, and former commander of the International Space Station. On August 30, 2012, Hoshide became the third Japanese astronaut to walk in space.
Ronald John Garan Jr. is a retired NASA astronaut. After graduating from State University of New York College at Oneonta in 1982, he joined the Air Force, becoming a Second Lieutenant in 1984. He became an F-16 pilot, and flew combat missions in Desert Shield and Desert Storm. Before becoming an astronaut he was the Operations Officer of the 40th Flight Test Squadron (FTS). He first flew in space as a mission specialist on the May 2008 STS-124 mission to the International Space Station (ISS). He returned to ISS on April 4, 2011, for a six-month stay as a member of Expedition 27. Garan is a highly decorated former NASA astronaut who flew on the US Space Shuttle, Russian Soyuz, and International Space Station. In total he spent 178 days in space and more than 71 million miles in 2,842 orbits of Earth, 27 hours and 3 minutes of EVA in four spacewalks, and 18 days on the bottom of the ocean during the NEEMO-9 undersea mission.
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 pilots the SpaceX Crew-8 mission that launched on 4 March 2024.
Expedition 18 was the 18th permanent crew of the International Space Station (ISS). The first two crew members, Michael Fincke, and Yuri Lonchakov were launched on 12 October 2008, aboard Soyuz TMA-13. With them was astronaut Sandra Magnus, who joined the Expedition 18 crew after launching on STS-126 and remained until departing on STS-119 on 25 March 2009. She was replaced by JAXA astronaut Koichi Wakata, who arrived at the ISS on STS-119 on 17 March 2009. Gregory Chamitoff, who joined Expedition 18 after Expedition 17 left the station, ended his stay aboard ISS and returned to Earth with the STS-126 crew.
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.
NASA Astronaut Group 18. The group saw the training of seven pilots and ten mission specialists to become NASA astronauts. These 17 astronauts began training in August 2000.
Expedition 46 was the 46th expedition to the International Space Station.
