Apollo-Soyuz

Apollo–Soyuz was the first crewed international space mission, carried out jointly by the United States and the Soviet Union in July 1975. Millions of people around the world watched on television as a United States Apollo module docked with a Soviet Union Soyuz capsule. The project, and its memorable handshake in space, was a symbol of détente between the two superpowers. It is generally considered to mark the end of the Space Race, which had begun in 1957 with the launch of Sputnik 1. The mission was officially known as the Apollo–Soyuz Test Project. In contrast, the American vehicle was unnumbered, as it was left over from the canceled Apollo missions; it was the last Apollo module to fly. The three United States and two Soviet Union astronauts performed both joint and separate scientific experiments, including an arranged eclipse of the Sun by the Apollo module to allow instruments on the Soyuz to take photographs of the solar corona.

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