The Space Shuttle Discovery completed the first docking with the International Space Station.
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The world's first satellite navigation system, Transit 1-B, was successfully launched from the US.
Syncom 2, the world's first geosynchronous communications satellite is launched.
The Soviet Union's Luna 5 uncrewed spacecraft crash-landed on the Moon.
The Viking 2 became the second spacecraft to land on Mars.
NASA launched the Columbia Space Shuttle for its final test flight, STS-4.
