Gagarin, YuriGa‧ga‧rin, Yu‧ri /ɡəˈɡɑːrɪn, ˈjʊəri/ 
(1934–68) a Soviet astronaut. On 12th April 1961 he became the first man in space when he travelled round the Earth in Vostok I.
(1934–68) a Soviet astronaut. On 12th April 1961 he became the first man in space when he travelled round the Earth in Vostok I.