born May 30, 1934, near Kemerovo, Russia, U.S.S.R.

Soviet cosmonaut, the first man to climb out of a spacecraft in space.

On March 18, 1965, Voskhod 2 was launched into space with Leonov and Pavel Belyayev aboard. During the second orbit Leonov let himself out of the spacecraft by means of an air lock while about 110 miles (177 km) above the Crimea. Tethered to the ship, Leonov made observations, took motion pictures, and practiced maneuvering in free-fall for about 10 minutes before reentering Voskhod 2 over western Siberia. The ship landed after completing 17 orbits (26 hours) in space. A decade later, Leonov was commander of the Soviet Soyuz craft that linked in orbit with the U.S. Apollo craft on July 17, 1975. Later in his career, he worked at the cosmonaut training centre.