Voyager 2
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Voyager 2
Timeline
1977 Voyager Program: NASA launches the Voyager 2 spacecraft.
1981 Voyager 2 spacecraft makes its closest approach to Saturn
1986 Voyager 2 passes within 81,500 km (50,680 miles) of Uranus.
1989 Voyager 2 spacecraft makes its closest approach to Neptune, the outermost planet in the Solar System.