Soyuz MS-27

Soyuz MS-27

Soyuz MS-27 launches to the International Space Station atop a Soyuz-2.1a rocket
Names	ISS 73S
Mission type	ISS crew transport
Operator	Roscosmos
Mission duration	10 days, 22 hours and 4 minutes (in progress) 240 days (planned)[1]
Spacecraft properties
Spacecraft	Soyuz MS-27 No. 758
Spacecraft type	Soyuz MS
Manufacturer	Energia
Launch mass	7,152 kg (15,767 lb)[2]
Crew
Crew size	3
Members	Sergey Ryzhikov Alexey Zubritsky Jonny Kim
Callsign	Favor
Expedition	Expedition 72/73
Start of mission
Launch date	8 April 2025, 05:47:15 UTC[3]
Rocket	Soyuz-2.1a No. K15000-075[2]
Launch site	Baikonur, Site 31/6
Contractor	RKTs Progress
End of mission
Landing date	8 December 2025 (planned)[4]
Landing site	Kazakh Steppe, Kazakhstan
Orbital parameters
Reference system	Geocentric orbit
Regime	Low Earth orbit
Docking with ISS
Docking port	Prichal nadir
Docking date	8 April 2025, 08:57:43 UTC[3]
Undocking date	8 December 2025 (planned)
Time docked	10 days, 18 hours and 54 minutes (in progress)
Mission patch From left: Kim, Ryzhikov and Zubritsky Soyuz programme ← Soyuz MS-26 Soyuz MS-28 →

Soyuz MS-27 is a Russian crewed Soyuz spaceflight that launched on 8 April 2025 from Site 31/6 at the Baikonur Cosmodrome, bound for the International Space Station. The spacecraft was launched aboard a Soyuz-2.1a rocket carrying three crew members, Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky, along with NASA astronaut Jonny Kim. The crew will participate in Expedition 72 and 73.