https://www.space.com/valery-polyakov-cosmonaut-obituary
Valery Polyakov, cosmonaut who logged longest space mission, dies at 80 | Space
Sep 19, 2022 - Cosmonaut Valery Polyakov, who logged the single longest stay in space, has died at the age of 80. Polyakov launched on two missions to the space station Mir....
valery polyakovspace missioncosmonautlogged