Expedition 73
The Expedition 73 crew posing for a portrait inside the Zvezda module | |
| Mission type | Long-duration expedition |
|---|---|
| Operator | NASA / Roscosmos |
| Mission duration | 79 days, 2 hours and 18 minutes (in progress) |
| Expedition | |
| Space station | International Space Station |
| Began | 19 April 2025 |
| Ended | 9 December 2025 |
| Arrived aboard | |
| Departed aboard | |
| Crew | |
| Crew size | 7–11 |
| Members | |
| EVAs | 1 |
| EVA duration | 5 hours, 44 minutes |
Expedition 73 mission patch Left to right, top row: Peskov, Kim, Ryzhikov, Zubritsky and Onishi. Bottom row: Ayers and McClain. | |
Expedition 73 is the 73rd long-duration expedition to the International Space Station (ISS). The expedition began with the departure of Soyuz MS-26 on 19 April 2025 with JAXA astronaut Takuya Onishi taking over the ISS command.[1] 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.
On 26 June, 2025, the crew was joined by the staff of Axiom Mission 4's Crew Dragon Grace: commander Peggy Whitson of the United States, pilot Shubhanshu Shukla of India, and mission specialists Sławosz Uznański-Wiśniewski of Poland and Tibor Kapu of Hungary.[2][3] Their mission marks India, Poland, and Hungary's return to crewed spaceflight for the first time in over 40 years.[4] During their two-week stay aboard the ISS, the astronauts will carry out 60 experiments planned by 31 different countries.[3][5]
Crew
| Flight | Astronaut | Increment 73a | Increment 73b | Increment 73c | Increment 73d |
|---|---|---|---|---|---|
| 19 Apr-Aug 2025 (ongoing) |
Aug 2025 (planned) |
Aug-27 Nov 2025 (planned) |
27 Nov-9 Dec 2025 (planned) | ||
| Soyuz MS-27 | Sergey Ryzhikov, Roscosmos Third spaceflight |
Flight Engineer | |||
| Alexey Zubritsky, Roscosmos First spaceflight |
Flight Engineer | ||||
| Jonny Kim, NASA First spaceflight |
Flight Engineer | ||||
| SpaceX Crew-10 | Anne McClain, NASA Second spaceflight |
Flight Engineer | Off Station | ||
| Nichole Ayers, NASA First spaceflight |
Flight Engineer | Off Station | |||
| Takuya Onishi, JAXA Second spaceflight |
Commander | Off Station | |||
| Kirill Peskov, Roscosmos First spaceflight |
Flight Engineer | Off Station | |||
| SpaceX Crew-11 (planned) |
Zena Cardman, NASA First spaceflight |
Off Station | Flight Engineer | ||
| Michael Fincke, NASA Fourth spaceflight |
Off Station | Flight Engineer | |||
| Kimiya Yui, JAXA Second spaceflight |
Off Station | Flight Engineer | |||
| Oleg Platonov, Roscosmos First spaceflight |
Off Station | Flight Engineer | |||
| Soyuz MS-28 (planned) |
Sergey Kud-Sverchkov, Roscosmos Second spaceflight |
Off Station | Flight Engineer | ||
| Sergey Mikayev, Roscosmos First spaceflight |
Off Station | Flight Engineer | |||
| Christopher Williams, NASA First spaceflight |
Off Station | Flight Engineer | |||
References
- ^ "大西卓哉宇宙飛行士のISS船長（ISSコマンダー）就任決定" [Astronaut Takuya Onishi appointed as ISS Commander]. JAXA (in Japanese). 2 December 2024. Retrieved 24 December 2024. [ We are pleased to announce that Takuya Onishi, an astronaut from the Japan Aerospace Exploration Agency (JAXA), has been selected as the ISS commander for the International Space Station (ISS) Expedition 73. Astronaut Onishi will be the third Japanese ISS commander and will lead the ISS during the Expedition 73 mission.]
- ^ "Axiom Mission 4". nasa.gov. NASA. Retrieved 25 June 2025.
- ^ a b Harwood, William (26 June 2025). "Ax-4 crew docks with International Space Station after 28-hour rendezvous". cbsnews.com. CBS News. Retrieved 27 June 2025.
- ^ "India, Poland, Hungary make spaceflight comeback with ISS mission". france24.com. Agence France-Presse. 25 June 2025. Retrieved 27 June 2025.
- ^ "Polska na orbicie. Misja IGNIS wystartowała!". gov.pl. Ministerstwo Rozwoju i Technologii. 25 June 2025. Retrieved 25 June 2025.