| First name and last name | Sergei Krikalev |
| Date of birth | 27.08.1958 |
| Nationality | Russian |
| Space Agency | Russian Federal Space Agency (ROSCOSMOS) (RFSA) |
| Status | Retired |
| Type of astronaut | Government agency |
| Wikipedia | https://en.wikipedia.org/wiki/Sergei_Krikalev |
Sergei Konstantinovich Krikalev (Russian: Серге́й Константинович Крикалёв, also transliterated as Sergei Krikalyov; born August 27, 1958) is a Russian cosmonaut and mechanical engineer. As a prominent rocket scientist, he is a veteran of six space flights and ranks third to Gennady Padalka and Yuri Malenchenko for the amount of time in space: a total of 803 days, 9 hours, and 38 minutes.