Russian spacecraft Vega 2 landed on Venus.
The Vega 2 was a mission to explore both Venus and Halley’s Comet.
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The Soviet Union's uncrewed Buran space shuttle completed its first and only space flight.
The Cassini–Huygens spacecraft became the first to enter Saturn's orbit.
NASA's Columbia Space Shuttle completed mission STS-61-C when it landed at the Edwards Air Force Base.
The first commercial communications satellite is launched.
NASA launched the Echo 2 experimental communications satellite.
