Viktor Patsayev, Kazakh engineer and astronaut (died 1971)

Viktor Ivanovich Patsayev was a Soviet cosmonaut who flew on the Soyuz 11 mission and was part of the third space crew to die during a space flight. On board the space station Salyut 1 he operated the Orion 1 Space Observatory ; he became the first man to operate a telescope outside the Earth's atmosphere.