The official emblem of the joint U.S. / USSR space mission. The Apollo-Soyuz Test Project will be carried out by a Soviet Soyuz space-craft and a U.S. Apollo spacecraft, which will rendezvous and dock in orbit.
Color Photo by NASA
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The Apollo–Soyuz Test Project (ASTP), conducted in July 1975, was the first joint U.S.–Soviet space flight, and the last flight of an Apollo spacecraft. It marked the end of the Space Race between the two superpowers that began in 1957.