First International Manned Space Mission

On July 17, 1975, an American Apollo spacecraft and a Soviet Soyuz spacecraft docked in space for the first international manned space mission. Three months later, the crewmembers of the Apollo-Soyuz test project—astronauts Thomas P. Stafford, Donald Slayton, and Vance Brand and cosmonauts Aleksel A. Leonov and Valeri N. Kubasov—planted Sophie’s Japonica trees at this site to commemorate cooperation in space between the U.S. and the U.S.S.R.

Washington, District of Columbia · United States