Expedition 74
| Mission type | Long-duration expedition |
|---|---|
| Operator | NASA / Roscosmos |
| Mission duration | 103 days, 22 hours and 57 minutes (in progress) |
| Expedition | |
| Space station | International Space Station |
| Began | 9 December 2025 |
| Ended | 26 July 2026 (planned) |
| Arrived aboard | |
| Departed aboard | |
| Crew | |
| Crew size | 3–10 |
| Members | |
| EVAs | 1, 1 (planned) |
| EVA duration | 7 hours, 2 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
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 has seen one spacewalk so far. 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. Two NASA astronauts will prepare the station’s 3B power channel for a future iROSA installation.[12][13]
Events manifest
Events involving crewed spacecraft are listed in bold.
Previous mission: Expedition 73
9 December 2025 – Soyuz MS-27 undocking, official switch from Expedition 73[14]
7 January 2026 – Undisclosed "medical situation" experienced by Fincke, US EVAs cancelled[2][4]
12 January 2026 – ISS Expedition 74 change of command from Michael Fincke to Sergey Kud-Sverchkov[7]
14 January 2026 – SpaceX Crew-11 undocking[15]
14 February 2026 – SpaceX Crew-12 docking[11]
26 February 2026 – CRS SpX-33 undocking[16]
6 March 2026 – HTV-X1 unberthing and release[17]
12 March 2026 – CRS NG-23 unberthing and release[18]
16 March 2026 – Progress MS-31 undocking[19]
18 March 2026 – EVA 1 (US-94) Meir/Williams: 7 hrs, 2 mins[12][13]
24 March 2026 – Progress MS-33 docking (planned)
1 April 2026 – EVA 2 (US-95) (planned)
April 2026 – CRS NG-24 capture and berthing (planned)
April 2026 – Progress MS-32 undocking (planned)
27 April 2026 – Progress MS-34 docking (planned)
May 2026 – CRS SpX-34 docking (planned)
19 June 2026 – Progress MS-35 docking (planned)
14 July 2026 – Soyuz MS-29 docking (planned)
25 July 2026 – ISS Expedition 74/75 change of command from Sergey Kud-Sverchkov to Jessica Meir (planned)
26 July 2026 – Soyuz MS-28 undocking, official switch to Expedition 75 (planned)
Next mission: Expedition 75
Crew
| 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 (ongoing) | 14–26 Jul 2026 (planned) | ||
| 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
| 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 | Apr 2026 |
| CRS NG-23 | Cargo | Unity nadir | 1 Dec 2025 (reberth) | 12 Mar 2026 |
| 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 | Oct 2026 (Exp. 75) |
| Progress MS-33 | Cargo | Poisk zenith | 24 Mar 2026 | TBD |
| CRS NG-24 | Cargo | Unity nadir | Apr 2026 | TBD |
| Progress MS-34 | Cargo | Zvezda aft | 27 Apr 2026 | TBD |
| CRS SpX-34 | Cargo | Harmony forward | May 2026 | TBD |
| Progress MS-35 | Cargo | Poisk nadir | 19 Jun 2026 | TBD |
| Soyuz MS-29 "Tigris" | Exp. 74/75 crew | Prichal nadir | 26 Jul 2026 | Mar 2027 (Exp. 75) |
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
- ^ Garcia, Mark A. (10 December 2025). "Station Trio Back on Earth; Expedition 74 Keeps Up Science, Maintains Systems". NASA. Retrieved 18 December 2025.
- ^ a b Clark, Stephen (8 January 2026). "NASA considers evacuating ailing crew member from International Space Station". Ars Technica. Retrieved 8 January 2026.
- ^ 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.
- ^ a b c "NASA's SpaceX Crew-11 Astronaut Update". NASA. 25 February 2026. Retrieved 25 February 2026.
- ^ Shaw, Elizabeth (5 January 2026). "NASA to Cover US Spacewalks 94, 95 at International Space Station". NASA. Retrieved 12 January 2026.
- ^ 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.
- ^ a b Garcia, Mark A. (12 January 2026). "Fincke Hands Over Station Command, Crew Preps for Wednesday Departure". NASA. Retrieved 12 January 2026.
- ^ Bergin, Chris (8 January 2026). "Crew-11 to return early due to a medical concern with astronaut". NASA SpaceFlight. Retrieved 8 January 2026.
- ^ Rannard, Georgina (15 January 2026). "Astronauts splash down to Earth after medical evacuation from space station". BBC News. Retrieved 15 January 2026.
- ^ 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.
- ^ a b "NASA's SpaceX Crew-12 Launches to International Space Station - NASA". Retrieved 14 February 2026.
- ^ a b Taveau, Jessica (12 March 2026). "NASA to Cover Upcoming US Spacewalks 94, 95 Outside Space Station". NASA. Retrieved 16 March 2026.
- ^ a b Garcia, Mark A. (18 March 2026). "Astronauts Install Solar Array Mod Kit, Complete Spacewalk". NASA. Retrieved 18 March 2026.
- ^ Garcia, Mark A. (8 December 2025). "Soyuz Undocks from Station, Crew Heads for Earth Return". NASA. Retrieved 18 December 2025.
- ^ Garcia, Mark A. (9 January 2026). "NASA, SpaceX Set Target Date for Crew-11's Return to Earth". NASA. Retrieved 12 January 2026.
- ^ Garcia, Mark A. (26 February 2026). "Science-Packed Dragon Departs Station, Heads for Splashdown". NASA. Retrieved 16 March 2026.
- ^ Garcia, Mark A. (6 March 2026). "Canadian Robotic Arm Releases Japan's Spacecraft for Departure". NASA. Retrieved 16 March 2026.
- ^ Garcia, Mark A. (12 March 2026). "Canadarm2 Releases Cygnus XL Spacecraft Ending Cargo Mission". NASA. Retrieved 16 March 2026.
- ^ Garcia, Mark A. (16 March 2026). "Roscosmos Progress Cargo Spacecraft Departs Station". NASA. Retrieved 16 March 2026.