TRAINING – APOLLO-SOYUZ TEST PROJECT (ASTP) (MOSCOW)

S74-25259 (June 1974) --- Four crewmen of the joint U.S.-USSR Apollo-Soyuz Test Project mission are photographed beside a Soyuz spacecraft trainer during ASTP crew training activity at the Cosmonaut Training Center (Star City) near Moscow. They are, left to right, astronaut Donald K. Slayton, docking module pilot of the American ASTP prime crew; cosmonaut Valeriy N. Kubasov, engineer of the Soviet ASTP first (prime) crew; cosmonaut Aleksey A. Leonov, commander of the Soviet ASTP first (prime) crew; and astronaut Thomas P. Stafford, commander of the American ASTP prime crew.