Sergei Mikayev
Russian cosmonaut (born 1986)
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Sergei Nikolayevich Mikayev (Russian: Сергей Николаевич Мика́ев; born 15 August 1986) is a Russian cosmonaut affiliated with Roscosmos. He was selected as a reserve crew member for the Soyuz MS-27 mission to the International Space Station (ISS), which launched in April 2025.
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15 August 1986
Sergei Mikayev | |
|---|---|
Сергей Микаев | |
Mikayev in 2024 | |
| Born | Sergei Nikolayevich Mikayev 15 August 1986 |
| Alma mater | Krasnodar Higher Military Aviation School of Pilots |
| Space career | |
| Roscosmos cosmonaut | |
Current occupation | Test cosmonaut |
Previous occupation | Military pilot |
| Status | Active |
| Rank | Major, Russian Air Force |
Time in space | 241 days and 59 minutes |
| Selection | 17th Cosmonaut Group (2018) |
Total EVAs | 1 |
Total EVA time | 6 hrs, 5 mins |
| Missions | Soyuz MS-28 (Expedition 73/74) |
Mission insignia |   |
Career
Mikayev was selected as a cosmonaut candidate by Roscosmos and trained at the Yuri Gagarin Cosmonaut Training Center in Star City, Russia. In 2025, he was assigned to the reserve crew for Soyuz MS-27 as a backup flight engineer, supporting the primary crew of Sergey Ryzhikov, Alexey Zubritsky, and Jonny Kim.[1] This mission, set to launch from the Baikonur Cosmodrome in Kazakhstan in April 2025, aims to facilitate long-term operations aboard the ISS. His role ensures readiness to step in if a primary crew member is unable to fly.[2]
Expedition 73/74
Mikayev conducted his first spaceflight and first ISS expedition aboard Soyuz MS-28.[3] The mission launched on 27 November 2025 from Baikonur, Site 31/6. He continued into Expedition 73/74 and returned to Earth by summer of 2026.[4]
