Sergey Prokopyev is a Russian astronaut and engineer born on January 19, 1975. He graduated from the Krasnoyarsk State Technical University and joined the Russian Air Force as a pilot. Prokopyev became a cosmonaut in 2003 and has participated in multiple space missions. He flew to the International Space Station (ISS) on several occasions, including a mission in 2018 as part of the Expedition 56/57 crew. Prokopyev has conducted various scientific experiments in space and contributed to the maintenance of the ISS, showcasing the importance of international collaboration in space exploration.