Soviet cosmonaut who flew humanity's first multi-day spaceflight aboard Vostok 3
The moment Vostok 3 reached orbit, Nikolayev unstrapped himself and floated free inside the cabin: Gagarin had not done it, nor had Titov. It was the first time a human being had ever slipped free of gravity's hold in space.
Born to a Chuvash peasant family, Nikolayev became the third Soviet cosmonaut in space. In August 1962, aboard Vostok 3, he orbited Earth 64 times over four days, humanity's first multi-day spaceflight, and his joint flight with Pavel Popovich's Vostok 4 established the dual-launch precedent later used for the women's space mission. His flight data proved that missions exceeding three days were feasible. In 1970, his 18-day Soyuz 9 mission with Vitaly Sevastyanov revealed the severe physiological toll of prolonged weightlessness, the 'Nikolayev effect', while his 1963 marriage to Valentina Tereshkova, presided over by Khrushchev, became a signature Cold War propaganda spectacle.
Career Timeline
- 1947–50Forestry technician, Karelia
- 1950–54Drafted; fighter pilot training, Chernigov and Frunze
- 1955–60Fighter pilot, Moscow air defence
- 1960Selected for the first cosmonaut group
- 1962.8Vostok 3: first multi-day spaceflight (64 orbits, 4 days)
- 1963–68Commander, Soviet cosmonaut detachment
- 1970.6Soyuz 9: 18-day endurance record
- 1974–82First Deputy Director, Gagarin Cosmonaut Training Centre; retired