SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Soyuz-19 crew before launch. Soviet cosmonauts Alexei Leonov (born 1934, front) and Valeri Kubasov (1935-2014) on a bus taking them to the launch site for their Soyuz-19 mission on 15th July 1975. Soyuz-19 was launched as part of a joint project between the USA and the USSR - the Apollo-Soyuz Test project (ASTP). It successfully docked with the American Apollo 18 spacecraft in orbit on 17th July 1975. The programme was intended to test a jointly-designed international docking mechanism. The US crew consisted of Thomas P. Stafford, Vance D. Brand and Donald K. Slayton.
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