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Valery Fyodorovich Bykovsky (b.1934), (right), Soviet cosmonaut who flew three manned space mission space flights: Vostok 5, Soyuz 22, and Soyuz 31. He was also backup for Vostok 3 and Soyuz 37. .Andriyan Grigoryevich Nikolayev (1929-2004), (centre), Soviet cosmonaut who flew on two space flights: Vostok 3 and Soyuz 9.1963..Supplied By: Society for Co-operation in Russian & Soviet Studies ... (KEYSTONE/United Archives / TopFoto/SCRSS)