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Neptune

1979 Jan 21
Neptune became the outermost planet as Pluto moved closer due to their highly elliptical orbits.
Links: Astronomy, Pluto, Neptune     Click to see the source(s) for this event 
 
1983 Jun 13
The US space probe Pioneer 10, launched in 1972, became the first spacecraft to leave the solar system as it crossed the orbit of Neptune.
Links: USA, NASA, Neptune     Click to see the source(s) for this event 
 
1989 Aug 2
NASA confirmed Voyager 2's discovery of 3 more moons of Neptune designated temporarily 1989 N2 (Larissa), 1989 N3 (Despina) and 1989 N4 (Galatea).
Links: NASA, Space, Neptune     Click to see the source(s) for this event 
 
1989 Aug 21
The US space probe Voyager 2 fired its thrusters to bring it closer to Neptune's mysterious moon Triton.
Links: USA, NASA, Neptune     Click to see the source(s) for this event 
 
1989 Aug 24
Voyager II passed within three thousand miles of Neptune sending back striking photographs.
Links: USA, NASA, Space, Neptune     Click to see the source(s) for this event 
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1989 Aug 25
NASA scientists received stunning photographs of Neptune and its moons from Voyager 2.
Links: NASA, Space, Neptune     Click to see the source(s) for this event 
 
1989 Aug 27
Chuck Berry performed his tune Johnny B. Goode for NASA staff in celebration of Voyager II's encounter with the planet Neptune.
Links: USA, NASA, Pop&Rock, Neptune     Click to see the source(s) for this event 
 
1989 Nov 12
A triple conjunction of Neptune and Saturn took place.
Links: Saturn, Neptune     Click to see the source(s) for this event 
 



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