Valery Korzun is a retired Russian cosmonaut known for his contributions to space exploration. Born on January 19, 1958, he flew on three space missions, including Soyuz TM-24 and STS-100, where he participated in important scientific research and technology demonstrations aboard the International Space Station. During his career, Korzun spent a total of 511 days in space, making him one of the most experienced cosmonauts. He also served as a commander for several missions, showcasing his leadership skills in the challenging environment of space. His work has significantly advanced our understanding of living and working in space.