The Apollo-Soyuz mission was a joint mission between the USA and the USSR. Their crafts docked in space and the astronauts shook hands.
When was the Apollo-Soyuz mission?
The Apollo-Soyuz mission happened in July 1975.
What was the significance of the Apollo-Soyuz mission?
The Apollo-Soyuz mission was significant because it was the first time the USSR and USA had cooperated in space rather than competing. It was a sign of détente.