The joint Apollo-Soyuz mission sent three U.S
astronauts into space aboard an Apollo
spacecraft that docked in orbit with with a
Soviet-made Soyuz vehicle.
When the commanders of the 2 crafts officially
greeted, their "handshake in space" served to
symbolize the gradual improvement of U.S-
Soviet relations (1 janv. 1975 – 31 déc. 1975)