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Expedition 74

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Expedition 74
Mission typeLong-duration expedition
OperatorNASA / Roscosmos
Mission duration219 days, 23 hours and 45 minutes (in progress)
Expedition
Space stationInternational Space Station
Began9 December 2025
Ended26 July 2026 (planned)
Arrived aboard
Departed aboard
Crew
Crew size3–10
Members
EVAs3
EVA duration20 hours, 27 minutes

Expedition 74 mission insignia

Expedition 74 is the 74th long-duration expedition to the International Space Station (ISS). The expedition began with the departure of Soyuz MS-27 on 9 December 2025 with NASA astronaut Michael Fincke taking over the ISS command and is expected to conclude with the undocking of Soyuz MS-28 on 26 July 2026. It continues the extensive scientific research conducted aboard the ISS, focusing on various fields, including biology, human physiology, physics, and materials science. The crew members also maintain and upgrade the space station systems.

Background, Crew, and Events

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The expedition commenced with a crew consisting of NASA astronauts Zena Cardman, Michael Fincke, and Christopher Williams, JAXA astronaut Kimiya Yui, and Roscosmos cosmonauts Oleg Platonov, Sergey Kud-Sverchkov, and Sergey Mikayev.[1]

On January 7, 2026, NASA announced that SpaceX Crew-11 would return to Earth about a month early due to an undisclosed "medical situation" affecting one crew member.[2][3][4] The incident led to the cancellation of two planned spacewalks on January 8 and 15, including preparations for installation of ISS Roll-Out Solar Arrays (iROSAs) and other maintenance tasks on the Harmony module and the station’s S6 and S4 truss.[5] NASA administrator Jared Isaacman confirmed the early return on January 8.[6]

On January 12, Fincke handed over command of the space station to Kud-Sverchkov. Crew-11 departed with Cardman, Fincke, Yui, and Platonov on January 14 approximately one month ahead of schedule.[7][8][9][10] Fincke later stated that he experienced the medical event, was stabilized by crewmates under the guidance of NASA flight surgeons, and returned early to access advanced medical imaging unavailable on the station. After splashdown, he was treated at Scripps Memorial Hospital La Jolla and later reported he was "doing very well".[4]

SpaceX Crew-12 arrived at the ISS on February 14, transporting NASA astronauts Jessica Meir and Jack Hathaway, ESA astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev.[11]

The expedition saw three spacewalks. On March 18, Meir and Williams performed a 7-hour, 2-minute spacewalk and prepared the 2A power channel for future installation of the iROSA to provide additional power.[12][13] On May 27, Kud-Sverchkov and Mikayev performed a 6-hour, 5-minute spacewalk to install a solar experiment on the Zvezda service module, remove other science hardware from the Poisk and Nauka modules of the orbiting complex’s Roscosmos segment, and photograph one of the Progress 94 cargo spacecraft’s Kurs rendezvous antennas that failed to deploy in March following its launch to the space station. On June 30, Meir and Williams performed a 7-hour, 20-minute spacewalk to release the wrist joint replacement module on ESP2 and swap it for a degraded one, which was brought in at the end of the spacewalk to return Canadarm2 to operations.

Soyuz MS-29 arrived at the station on July 14, transporting Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina, along with NASA astronaut Anil Menon. After a two-week handover period, Kud-Sverchkov will transfer command of the ISS to Meir. The expedition is scheduled to come to a close on July 26 with the departure of Kud-Sverchkov, Mikayev, and Williams on Soyuz MS-28.

Events manifest

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Events involving crewed spacecraft are listed in bold.

Previous mission: Expedition 73

Next mission: Expedition 75

Crew

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Flight Astronaut Increment 74a Increment 74b Increment 74c Increment 74d
9 Dec 2025–14 Jan 2026 14 Jan–14 Feb 2026 14 Feb–14 Jul 2026 14–26 Jul 2026 (ongoing)
Soyuz MS-28 Sergey Kud-Sverchkov, Roscosmos
Second spaceflight		 Flight engineer Commander
Sergey Mikayev, Roscosmos
First spaceflight		 Flight engineer
Christopher Williams, NASA
First spaceflight		 Flight engineer
SpaceX Crew-11 Zena Cardman, NASA
First spaceflight		 Flight engineer Off station
Michael Fincke, NASA
Fourth spaceflight		 Commander Off station
Kimiya Yui, JAXA
Second spaceflight		 Flight engineer Off station
Oleg Platonov, Roscosmos
First spaceflight		 Flight engineer Off station
SpaceX Crew-12 Jessica Meir, NASA
Second spaceflight		 Off station Flight engineer
Jack Hathaway, NASA
First spaceflight		 Off station Flight engineer
Sophie Adenot, ESA
First spaceflight		 Off station Flight engineer
Andrey Fedyaev, Roscosmos
Second spaceflight		 Off station Flight engineer
Soyuz MS-29 Pyotr Dubrov, Roscosmos
Second spaceflight		 Off station Flight engineer
Anna Kikina, Roscosmos
Second spaceflight		 Off station Flight engineer
Anil Menon, NASA
First spaceflight		 Off station Flight engineer

Vehicle manifest

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Vehicle Purpose Port Docking date Undocking date
Vehicles inherited from Expedition 73
Progress MS-31 Cargo Poisk zenith 5 Jul 2025 16 Mar 2026
SpaceX Crew-11 "Endeavour" Exp. 73/74 crew Harmony zenith 2 Aug 2025 14 Jan 2026
CRS SpX-33 Cargo Harmony forward 25 Aug 2025 26 Feb 2026
Progress MS-32 Cargo Zvezda aft 13 Sep 2025 20 Apr 2026
CRS NG-23 Cargo Unity nadir 18 Sep 2025 24 Nov 2025
1 Dec 2025 (reberth) 12 Mar 2026 (Exp. 74)
HTV-X1 Cargo Harmony nadir 29 Oct 2025 6 Mar 2026
Soyuz MS-28 "Gyrfalcon" Exp. 73/74 crew Rassvet nadir 27 Nov 2025 26 Jul 2026
Vehicles docked during Expedition 74
SpaceX Crew-12 "Freedom" Exp. 74/75 crew Harmony zenith 14 Feb 2026 Sep 2026 (Exp. 75)
Progress MS-33 Cargo Poisk zenith 24 Mar 2026 Sep 2026 (Exp. 75)
CRS NG-24 Cargo Unity nadir 13 Apr 2026 Oct 2026 (Exp. 75)
Progress MS-34 Cargo Zvezda aft 28 Apr 2026 Nov 2026 (Exp. 75)
CRS SpX-34 Cargo Harmony forward 17 May 2026 16 June 2026
Soyuz MS-29 "Tigris" Exp. 74/75 crew Prichal nadir 14 Jul 2026 Apr 2027 (Exp. 75)
Segment US Orbital Segment Russian Orbital Segment
Period Harmony forward Harmony zenith Harmony nadir Unity nadir Rassvet nadir Prichal nadir Poisk zenith Zvezda aft
9 Dec 2025–14 Jan 2026 CRS SpX-33 SpaceX Crew-11 HTV-X1 CRS NG‑23 Soyuz MS-28 Vacant Progress MS-31 Progress MS-32
14 Jan–14 Feb 2026 Vacant
14–26 Feb 2026 SpaceX Crew-12
26 Feb–6 Mar 2026 Vacant
6–12 Mar 2026 Vacant
12–16 Mar 2026 Vacant
16–24 Mar 2026 Vacant
24 Mar–13 Apr 2026 Progress MS-33
13–20 Apr 2026 CRS NG-24
20–28 Apr 2026 Vacant
28 Apr–17 May 2026 Progress MS-34
17 May–16 Jun 2026 CRS SpX-34
16 Jun–14 Jul 2026 Vacant
14–26 Jul 2026 (ongoing) Soyuz MS-29

The Prichal aft, forward, starboard, and aft ports all have yet to be used since the module originally docked to the station and are not included in the table.

References

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  1. ↑ Garcia, Mark A. (10 December 2025). "Station Trio Back on Earth; Expedition 74 Keeps Up Science, Maintains Systems". NASA. Retrieved 18 December 2025.
  2. 1 2 Clark, Stephen (8 January 2026). "NASA considers evacuating ailing crew member from International Space Station". Ars Technica. Retrieved 8 January 2026.
  3. ↑ Holpuch, Amanda; Chang, Kenneth (8 January 2026). "NASA Will Bring I.S.S. Astronauts Home Early After Medical Issue". The New York Times. ISSN 1553-8095. Retrieved 8 January 2026.
  4. 1 2 3 "NASA's SpaceX Crew-11 Astronaut Update". NASA. 25 February 2026. Retrieved 25 February 2026.
  5. ↑ Shaw, Elizabeth (5 January 2026). "NASA to Cover US Spacewalks 94, 95 at International Space Station". NASA. Retrieved 12 January 2026.
  6. ↑ Clark, Stephen (8 January 2026). "NASA orders "controlled medical evacuation" from the International Space Station". Ars Technica. New York: Condé Nast. Archived from the original on 9 January 2026. Retrieved 9 January 2026.
  7. 1 2 Garcia, Mark A. (12 January 2026). "Fincke Hands Over Station Command, Crew Preps for Wednesday Departure". NASA. Retrieved 12 January 2026.
  8. ↑ Bergin, Chris (8 January 2026). "Crew-11 to return early due to a medical concern with astronaut". NASA SpaceFlight. Retrieved 8 January 2026.
  9. ↑ Rannard, Georgina (15 January 2026). "Astronauts splash down to Earth after medical evacuation from space station". BBC News. Retrieved 15 January 2026.
  10. ↑ Harwood, William (9 January 2026). "Crew-11 to cut mission short and return to Earth due to medical issue". Spaceflight Now. Retrieved 9 January 2026.
  11. 1 2 "NASA's SpaceX Crew-12 Launches to International Space Station - NASA". Retrieved 14 February 2026.
  12. 1 2 Taveau, Jessica (12 March 2026). "NASA to Cover Upcoming US Spacewalks 94, 95 Outside Space Station". NASA. Retrieved 16 March 2026.
  13. 1 2 Garcia, Mark A. (18 March 2026). "Astronauts Install Solar Array Mod Kit, Complete Spacewalk". NASA. Retrieved 18 March 2026.
  14. ↑ Garcia, Mark A. (8 December 2025). "Soyuz Undocks from Station, Crew Heads for Earth Return". NASA. Retrieved 18 December 2025.
  15. ↑ Garcia, Mark A. (9 January 2026). "NASA, SpaceX Set Target Date for Crew-11's Return to Earth". NASA. Retrieved 12 January 2026.
  16. ↑ Garcia, Mark A. (26 February 2026). "Science-Packed Dragon Departs Station, Heads for Splashdown". NASA. Retrieved 16 March 2026.
  17. ↑ Garcia, Mark A. (6 March 2026). "Canadian Robotic Arm Releases Japan's Spacecraft for Departure". NASA. Retrieved 16 March 2026.
  18. ↑ Garcia, Mark A. (12 March 2026). "Canadarm2 Releases Cygnus XL Spacecraft Ending Cargo Mission". NASA. Retrieved 16 March 2026.
  19. ↑ Garcia, Mark A. (16 March 2026). "Roscosmos Progress Cargo Spacecraft Departs Station". NASA. Retrieved 16 March 2026.
  20. ↑ Garcia, Mark A. (24 March 2026). "Progress Cargo Craft Docks to Station Resupplying Crew". NASA. Retrieved 22 May 2026.
  21. ↑ Garcia, Mark A. (13 April 2026). "Canadarm2 Installs Cygnus XL Cargo Craft to Unity Module". NASA. Retrieved 22 May 2026.
  22. ↑ Garcia, Mark A. (20 April 2026). "Roscosmos Progress 93 Cargo Spacecraft Departs Station". NASA. Retrieved 22 May 2026.
  23. ↑ Garcia, Mark A. (27 April 2026). "Progress 95 Cargo Craft Docks to Station with Food, Fuel, and Supplies". NASA. Retrieved 22 May 2026.
  24. ↑ Garcia, Mark A. (17 May 2026). "SpaceX Dragon Docks to Station Filled with New Science Experiments". NASA. Retrieved 22 May 2026.
  25. ↑ Garcia, Mark A. (27 May 2026). "Spacewalkers Back Inside Station After Science Hardware Work". NASA. Retrieved 1 June 2026.
  26. ↑ "NASA to Cover US Spacewalk 95, Host Preview News Conference - NASA". Retrieved 24 June 2026.
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