The Voskhod (Russian: Восход, "Sunrise") was a spacecraft built by the Soviet Union's space program for human spaceflight as part of the Voskhod programme. It was a development of and a follow-on to the Vostok spacecraft. Voskhod 1 was used for a three-man flight whereas Voskhod 2 had a crew of two. They consisted of a spherical descent module (diameter 2.3 metres (7.5 ft)), which housed the cosmonauts, and instruments, and a conical equipment module (mass 2.27 tonnes or 5,000 pounds, 2.25 m (7.4 ft) long, 2.43 m (8.0 ft) wide), which contained propellant and the engine system. Voskhod was superseded by the Soyuz spacecraft in 1967.