Soyuz MS-27

Soyuz MS-27 is a planned Russian crewed Soyuz spaceflight to launch from Site 31/6 at the Baikonur Cosmodrome in March 2025 to the International Space Station. The mission will transport three crew members, Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky, along with NASA astronaut Jonny Kim.

Soyuz MS-27

Names	ISS 73S
Mission type	ISS crew transport
Operator	Roscosmos
Mission duration	240 days (planned)
Spacecraft properties
Spacecraft	Soyuz MS-27 No. 758
Spacecraft type	Soyuz MS
Manufacturer	Energia
Crew
Crew size	3
Members	Sergey Ryzhikov Alexey Zubritsky Jonny Kim
Start of mission
Launch date	March 2025 (planned)
Rocket	Soyuz 2.1a
Launch site	Baikonur, Site 31/6
Contractor	Progress
End of mission
Landing date	November 2025 (planned)
Landing site	Kazakh Steppe, Kazakhstan
Orbital parameters
Reference system	Geocentric orbit
Regime	Low Earth orbit
Docking with ISS
Docking port	Prichal nadir
Docking date	March 2025 (planned)
Undocking date	November 2025 (planned)
From left: Kim, Ryzhikov and Zubritsky Soyuz programme

Crew

Prime crew

Position	Crew
Commander	Sergey Ryzhikov, Roscosmos Expedition 72/73 Third spaceflight
Flight Engineer	Alexey Zubritsky, Roscosmos Expedition 72/73 First spaceflight
Flight Engineer	Jonny Kim, NASA Expedition 72/73 First spaceflight

Backup crew

Position	Crew
Commander	Sergey Kud-Sverchkov, Roscosmos
Flight Engineer	Sergey Mikayev, Roscosmos
Flight Engineer	Christopher Williams, NASA