Expedition 73
{{Short description|Current long-duration mission to the International Space Station}}
{{One source|date=December 2024}}
{{Use dmy dates|date=August 2024}}
{{Infobox spaceflight
| name = Expedition 73
| image = The station pictured from the SpaceX Crew Dragon 1.jpg
| image_caption =
| mission_type = Long-duration expedition
| space_station = International Space Station
| start_date = 19 April 2025
| end_date = 8 December 2025
| mission_duration =
| arrival_craft = {{Unbulleted list
}}
| departure_craft = {{Unbulleted list
}}
| crew_size = 7–11
| crew_members = {{Unbulleted list
|Expedition 72/73:
|Expedition 73/74:
}}
| crew_EVAs = 1
| crew_EVA_duration = 5 hours, 44 minutes
| insignia = ISS Expedition 73 Patch.png
| insignia_caption = Expedition 73 mission patch
| crew_photo = The official portrait of the Expedition 73 crew (iss073-s-002).jpg
| crew_photo_caption = Left to right, top row: Peskov, Kim, Ryzhikov, Zubritsky and Onishi. Bottom row: Ayers and McClain.
| programme = Expeditions
| previous_mission = Expedition 72
| next_mission = Expedition 74
}}
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.{{Cite web |date=December 2, 2024 |title=大西卓哉宇宙飛行士のISS船長（ISSコマンダー）就任決定 |trans-title=Astronaut Takuya Onishi appointed as ISS Commander |url=https://www.jaxa.jp/press/2024/12/20241202-1_j.html |access-date=2024-12-24 |website=JAXA |language=ja |trans-quote= 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.}} It will continue the extensive scientific research conducted aboard the ISS, focusing on various fields, including biology, human physiology, physics, and materials science. The crew members will also maintain and upgrade the space station systems.
Crew
| class="wikitable" style="text-align:center"
! rowspan="2" |Flight ! rowspan="2" |Astronaut !Increment 73a !Increment 73b !Increment 73c !Increment 73d |
| 19{{nbsp}}Apr-Aug 2025 (ongoing) !Aug 2025 !Aug-27{{nbsp}}Nov 2025 !27{{nbsp}}Nov-8{{nbsp}}Dec 2025 |
|---|
| rowspan="3" |Soyuz MS-27
!{{Flagicon|Russia}} Sergey Ryzhikov, Roscosmos | colspan="4" |Flight Engineer |
| {{Flagicon|Russia}} Alexey Zubritsky, Roscosmos First spaceflight | colspan="4" |Flight Engineer |
| {{Flagicon|USA}} Jonny Kim, NASA First spaceflight | colspan="4" |Flight Engineer |
| rowspan="4" |SpaceX Crew-10
!{{Flagicon|USA}} Anne McClain, NASA | colspan="2" |Flight Engineer | colspan="2" style="background:grey; color:white;" |Off Station |
| {{Flagicon|USA}} Nichole Ayers, NASA First spaceflight | colspan="2" |Flight Engineer | colspan="2" style="background:grey; color:white;" |Off Station |
| {{Flagicon|Japan}} Takuya Onishi, JAXA Second spaceflight | colspan="2" |Commander | colspan="2" style="background:grey; color:white;" |Off Station |
| {{Flagicon|Russia}} Kirill Peskov, Roscosmos First spaceflight | colspan="2" |Flight Engineer | colspan="2" style="background:grey; color:white;" |Off Station |
| rowspan="4" |SpaceX Crew-11 (planned) !{{Flagicon|USA}} Zena Cardman, NASA | style="background:grey; color:white;" |Off Station | colspan="3" |Flight Engineer |
| {{Flagicon|USA}} Michael Fincke, NASA Fourth spaceflight | style="background:grey; color:white;" |Off Station | colspan="3" |Flight Engineer |
| {{Flagicon|Japan}} Kimiya Yui, JAXA Second spaceflight | style="background:grey; color:white;" |Off Station | colspan="3" |Flight Engineer |
| {{Flagicon|RUS}} Oleg Platonov, Roscosmos First spaceflight | style="background:grey; color:white;" |Off Station | colspan="3" |Flight Engineer |
| rowspan="3" |Soyuz MS-28 (planned) !{{Flagicon|Russia}} Sergey Kud-Sverchkov, Roscosmos | colspan="3" style="background:grey; color:white;" |Off Station |Flight Engineer |
| {{Flagicon|Russia}} Sergey Mikayev, Roscosmos First spaceflight | colspan="3" style="background:grey; color:white;" |Off Station |Flight Engineer |
| {{Flagicon|USA}} Christopher Williams, NASA First spaceflight | colspan="3" style="background:grey; color:white;" |Off Station |Flight Engineer |
References
{{Reflist}}
{{commons}}
{{ISS expeditions}}
{{space-stub}}