FILE - In this Tuesday, July 11, 1961 file photo, Soviet spaceman Yuri Gagarin waves after arriving at the London Airport, for a private visit as the guest of the Russian Trade fair. 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/File)