FILE - In this Saturday, July 15, 1961 file photo, autograph hunters jostle round Major Yuri Gagarin, the Russian cosmonaut, at the Soviet Embassy in London, as he left for London airport after his visit to Britain in connection with the soviet exhibition in London. The successful one-orbit flight on April 12, 1961 made the 27-year-old Gagarin a national hero and cemented Soviet supremacy in space until the United States put a man on the moon more than eight years later. (AP Photo/Dennis Lee Royle, File)