Yuri Alekseyevich Gagarin (Russian: Ю́рий Алексе́евич Гага́рин,[1] 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.