The Apollo-Soyuz Test Project brought Soviet cosmonauts and NASA astronauts together in the first international human spaceflight. A 1973 artist’s concept of the Apollo-Soyuz Test Project, with ...

On July 17, 1975, an American Apollo crew and a Soviet Soyuz crew met up in Earth orbit for the first time, setting the foundation for continued cooperation in space over the past 50 years.

The Apollo–Soyuz Test Project lead directly to the Shuttle– Mir missions of the 1990s, which in turn was a stepping stone towards the International Space Station.

Representing the joint Apollo-Soyuz Test Project (ASTP, or Soyuz-Apollo in the Soviet Union), both crews wore a cloth patch that featured the artwork of an accomplished space artist.

The American half of the 1975 Apollo-Soyuz Test Project was commanded by Thomas P. Stafford of Weatherford, Oklahoma. Stafford asked an Oklahoma City-based country singer for help in thawing the ...