| Nikolai Chub | |
| Native Name: | Николай Чуб |
| Type: | Roscosmos cosmonaut |
| Status: | Active |
| Birth Name: | Nikolay Aleksandrovich Chub |
| Birth Date: | 10 June 1984 |
| Birth Place: | Novocherkassk, Russian SFSR, USSR |
| Current Occupation: | Test cosmonaut |
| Previous Occupation: | Economist |
| Space Time: | 373days, 20hours, 14minutes |
| Selection: | TsPK 2012 Cosmonaut Group |
| Missions: | Soyuz MS-24/MS-25 (Expedition 69/70/71) |
| Evas: | 2 |
| Eva Time: | 12hours, 17minutes |
Nikolay Aleksandrovich Chub (ru|Николай Александрович Чуб; born 10 June 1984) is a cosmonaut selected by the Roscosmos space agency in 2012.
Prior to selection as a cosmonaut, Chub obtained a degree in management and informatics from the South-Russian State Technical University (Novocherkassk Polytechnic Institute) in 2006 as the top member of his class.[1] He subsequently obtained a graduate degree in economics from the same institution.
Prior to his selection as a cosmonaut, Chub directed the astronautics firm Space Tu, LLC. He was selected as a cosmonaut candidate in 2012 and was named a test cosmonaut on June 16, 2014.
In 2019 Chub participated to the training ESA CAVES,[2] [3] organized by the European Space Agency, held between Italy and Slovenia.
Chub trained as a backup crewmember for the Soyuz MS-12 flight to the International Space Station, and in accordance with his Roscosmos biography, had been selected as a crewmember for the Soyuz MS-17 mission, but was subsequently replaced by American astronaut Kathleen Rubins.[4]
In January 2022 Chub was denied without explanation a visa to the United States to visit the Johnson Space Center and to hold a five-week session there to get acquainted with the American segment of the ISS.[5] Roscosmos considered that the decision of the American side threatens the safety of the astronaut on the ISS.[6] After the publication of this information, a visa for a trip to the United States was issued to Chub a few days later.[7]
Chub was again assigned as a backup crew member for Soyuz MS-22, and then flew on MS-24. He returned on Soyuz MS-25 after a year long mission in space.[8]