Valery Fyodorovich Bykovsky was a Soviet cosmonaut who flew on three space flights: Vostok 5, Soyuz 22, and Soyuz 31. He was also backup for Vostok 3 and Soyuz 37.
Valery Bykovsky
Bykovsky and Valentina Tereshkova with children, c. 1963
Valery Bykovsky and East German astronaut Sigmund Jähn after the Soyuz 31 mission
A 1963 Soviet postage stamp showing Valery Bykovsky and Vostok 5
Vostok 5 was a joint mission of the Soviet space program together with Vostok 6; as with the previous pair of Vostok 3 and Vostok 4 the two Vostok spacecraft came close to one another in orbit and established a radio link.
Model of the Vostok capsule with its upper stage
Vostok programme Crewed flights← Vostok 3 and 4Vostok 6 →