The Partnership: A NASA History of the Apollo-Soyuz Test Project

The 1975 Apollo-Soyuz Test Project (ASTP) was the first joint U.S.-Soviet space flight, in which teams from the two nations met in orbit to test an international docking system and conduct both collaborative and independent studies. Although primarily a symbol of international goodwill, the mission provided useful experience for future cooperative ventures between the two nations. This authorized NASA history features many fascinating interviews with participants as well as firsthand observation…