In an unpredictable era that has seen the Cold War rekindled, it's worth remembering a remarkable event that took place 50 years ago when the first crewed international space mission, carried out jointly by the United States and the Soviet Union, took place. It resulted in an historic handshake in space that was televised around the world.
The purpose and catalyst of what was known as the Apollo–Soyuz Test Project was the policy of détente between the two superpowers. It briefly united two different countries and two different ideologies. Half a century later, however, relations between America and Russia are at their lowest point since the Cold War.
Click through the following gallery and be reminded of that extraordinary moment in 1975 high above the Earth.