| Names | ISS 73S |
|---|---|
| Mission type | ISS crew transport |
| Operator | Roscosmos |
| Mission duration | 240 days (planned)[1] |
| Spacecraft properties | |
| Spacecraft | Soyuz MS-27 No. 758 |
| Spacecraft type | Soyuz MS |
| Manufacturer | Energia |
| Crew | |
| Crew size | 3 |
| Members | |
| 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)[1] |
| 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 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.[1]