Yuri Alekseyevich Gagarin (Russian: Ю́рий Алексе́евич Гага́рин, Russian pronunciation: [ˈjurʲɪj ɐlʲɪˈksʲeɪvʲɪtɕ ɡɐˈɡarʲɪn]; 9 March 1934 – 27 March 1968, was a Soviet pilot and cosmonaut. He was the first human to journey into outer space when his Vostok spacecraft completed an orbit of the Earth on April 12, 1961. Gagarin became an international celebrity, and was awarded many medals and honours, including Hero of the Soviet Union. Vostok 1 marked his only spaceflight, but he served as backup to the Soyuz 1 mission, which ended in a fatal crash. Gagarin later became deputy training director of the Cosmonaut Training Centre outside Moscow, which was later named after him. Gagarin died when a training jet he was piloting crashed in 1968.