Apollo-Soyuz Test Project: A Soviet-American Handshake in Space

On July 17, 1975, the American Apollo spacecraft successfully docked with the Soviet Soyuz capsule, enabling astronauts Thomas P. Stafford and Alexei Leonov to greet each other in orbit. This event, known as the Apollo-Soyuz Test Project, represented a significant milestone in Cold War détente and set the stage for collaboration between the US and USSR in space. The initiative stemmed from the 1962 Dryden-Blagonravov Agreement and was officially established in 1972 by President Richard Nixon and Soviet Premier Alexei Kosygin. The crew comprised Stafford, Vance D. Brand, Deke Slayton, Leonov, and Valery Kubasov. Over nearly two days, they overcame challenges such as a universal docking mechanism and language differences, paving the way for future endeavors like Shuttle-Mir and the International Space Station. In October 2019, Stafford honored Leonov with a eulogy at his funeral.