Born on April 27, 1942, the Russian cosmonaut has lived and worked in space a record 437 days in a while – orbiting Earth on the Mir space station more than 7,000 times in the period from January 8, 1994 to March 22, 1995.
Polyakov has made two space explorations in his career, totaling 678 days and 16 hours, according to Roscosmos.
“His research has helped demonstrate that the human body is ready for flights not only to near-Earth orbit, but also into deep space,” Roscosmos said in a statement, adding: I send my deep condolences to the relatives and friends of Valery Vladimirovich .”
Polyakov trained as a doctor, joining the Institute of Biomedical Problems in Moscow in 1971. The following year, he passed the exams to become one of the first astronaut-medical trainees. of the institute. He obtained his Candidate of Medical Science degree in 1976.
Polyakov made his first space mission in 1988, returning in 1989 after 8 months. That year, he was appointed deputy director of the Institute of Biomedical Affairs.
He held this post even after officially retiring in 1995, and also served as vice chairman of the committee in charge of certifying Russian cosmonauts.