Soyuz MS-28
| Names | ISS 74S |
|---|---|
| Mission type | ISS crew transport |
| Operator | Roscosmos |
| Mission duration | 240 days (planned) |
| Spacecraft properties | |
| Spacecraft | Soyuz MS-28 No. 753[1] |
| Spacecraft type | Soyuz MS |
| Manufacturer | Energia |
| Crew | |
| Crew size | 3 |
| Members | |
| Callsign | Gyrfalcon[2] |
| Start of mission | |
| Launch date | NET 27 November 2025, 07:26 UTC[2] |
| Rocket | Soyuz-2.1a |
| Launch site | Baikonur, Site 31/6 |
| Contractor | RKTs Progress |
| End of mission | |
| Landing date | July 2026 (planned)[3] |
| Landing site | Kazakh Steppe, Kazakhstan |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Low Earth orbit |
| Inclination | 51.66° |
| Docking with ISS | |
| Docking port | Rassvet nadir |
| Docking date | 27 November 2025 (planned) |
| Undocking date | July 2026 (planned) |
 Mission insignia .jpg?lang=en) From left: Williams, Kud-Sverchkov and Mikayev | |
Soyuz MS-28 is a planned Russian crewed Soyuz spaceflight to launch from Site 31/6 at the Baikonur Cosmodrome no earlier than 27 November 2025 to the International Space Station.
Mission
[edit]The mission was initially scheduled to use Soyuz MS vehicle No. 759, which was next in line for assembly at Energia's factory in Korolyov. During post-production testing, the spacecraft reportedly sustained major damage to its heat shield that could not be repaired in time for the planned launch at the end of 2025. Reports suggested that the shield was either detached when its pyrotechnic bolts were inadvertently triggered (similar to the procedure that occurs shortly before landing) or that its thermal layers delaminated during a poorly executed test. As of October 2025, Roscosmos had not acknowledged the incident, but photographs released from the Baikonur Cosmodrome showed that Soyuz MS vehicle No. 753 was being prepared for flight.[1]
Vehicle No. 753, along with No. 752, had originally been allocated for prospective commercial missions. Vehicle No. 752 was used for the Soyuz MS-20 space tourism flight, but following Russia's invasion of Ukraine, commercial contracts with the Russian space program were cancelled. As a result, No. 753 was reassigned to regular International Space Station operations. The substitution also allowed Roscosmos to utilize the older spacecraft before its onboard systems exceeded their certified service life.[1]
Preparations for launch began in early October 2025 at the Baikonur Cosmodrome, including testing of the spacecraft's Kurs rendezvous system, leak checks in a vacuum chamber, and verification of propulsion, guidance, and communications systems.[1]
The Soyuz-2.1a launch vehicle and payload fairing for the mission arrived by rail at Baikonur on 22 October 2025.[1]
Crew
[edit]The mission was slated to be the first to launch after the termination of a NASA/Roscosmos barter agreement, where one Russian cosmonaut flies on a NASA spacecraft in exchange for one NASA astronaut flying on a Soyuz. Consequently, as of 2024[update], this mission was scheduled to transport three Russian cosmonauts. However, NASA and Roscosmos were negotiating to extend their seat exchange program beyond 2025,[4] and in April 2025, NASA announced that Christopher Williams had been assigned to the crew.[5]
| Position[6] | Crew | |
|---|---|---|
| Commander | Sergey Kud-Sverchkov, Roscosmos Expedition 73/74 Second spaceflight | |
| Flight engineer | Sergey Mikayev, Roscosmos Expedition 73/74 First spaceflight | |
| Flight engineer | Christopher Williams, NASA Expedition 73/74 First spaceflight | |
| Position[6] | Crew | |
|---|---|---|
| Commander | Pyotr Dubrov, Roscosmos | |
| Flight engineer | Anna Kikina, Roscosmos | |
| Flight engineer | Anil Menon, NASA | |
References
[edit]- ^ a b c d e Zak, Anatoly (31 October 2025). "Roskosmos swaps ships for the Soyuz MS-28 mission". RussianSpaceWeb.com. Retrieved 1 November 2025.
- ^ a b "Spaceflight mission report Soyuz MS-28". spacefacts.de. Retrieved 5 August 2025.
- ^ "Upcoming ISS Expeditions". spacefacts.de. 19 December 2024. Retrieved 16 January 2025.
- ^ NASA's Management of Risks to Sustaining ISS Operations through 2030 (PDF) (Report). NASA Office of Inspector General. 26 September 2024. p. 14. Retrieved 2 October 2024.
- ^ "NASA Astronaut Chris Williams Assigned to First Space Station Mission - NASA".
- ^ a b "Центр подготовки космонавтов им. Ю.А.Гагарина. Официальный Web-сайт" [Crews in training]. Yuri Gagarin Cosmonaut Training Center (in Russian). Retrieved 10 February 2025.
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