1. The Apollo-Soyuz Space Mission (1975)
The Apollo-Soyuz Space Mission, conducted in July 1975, marked the first international human spaceflight, symbolizing a thaw in Cold War tensions. The mission involved the docking of the American Apollo spacecraft with the Soviet Soyuz spacecraft, facilitating joint scientific experiments and fostering cooperation between the United States and the Soviet Union. This historic event laid the groundwork for future collaborative efforts in space exploration (nasa.gov).
