The U.S.S.R. launched the world's first multi-manned spacecraft, Voskhod I, the first to carry a scientist and a physician into space. The crew were Col. Vladimir Komarov, pilot; Konstantin Feoktistov, scientist; and Boris Yegorov, physician. Potentially dangerous modification of Vostok to upstage American Gemini flights; no spacesuits, ejection seats, or escape tower. One concession was backup solid retrorocket package mounted on nose of spacecraft. Seats mounted perpendicular to Vostok ejection seat position, so crew had to crane their necks to read instruments, still mounted in their original orientation. Tested the new multi-seat space ship; investigated the in-flight work potential and co-operation of a group of cosmonauts consisting of specialists in different branches of science and technology; conducted scientific physico-technical and medico-biological research. The mission featured television pictures of the crew from space.

Land recovery made possible by rocket package suspended above capsule in parachute lines, which ignited just prior to impact in order to cushion landing. The trio landed after 16 orbits of the earth, 24 hours and 17 min after they had left, on October 13, 1964 7:47 GMT.

Coming before the two-man Gemini flights, Voskhod 1 had a significant worldwide impact. In the United States, the "space race" was again running under the green flag. NASA Administrator James E. Webb, commenting on the spectacular, called it a "significant space accomplishment." It was, he said, "a clear indication that the Russians are continuing a large space program for the achievement of national power and prestige."

Planned second long-duration 20 day Voskhod flight. Cancelled in spring 1966 after near-disaster with Voskhod 2 and death of Korolev. A follow-on Voskhod 3V s/n 7 mission was also planned that would have conducted an artificial gravity experiment, unreeling a tether between the Voskhod spacecraft and the Block I final rocket stage.