New Hampshire Astronomical SocietyAugust 24th in Astronomy and Space Science
 | 1989 | Voyager 2 makes its final planetary flyby, passing within 5,000 km (3,000 miles) of Neptune. Six additional moons are discovered, giving Neptune a full compliment of eight natural satellites. The highest winds in the solar system are clocked on Neptune at about 2,000 km/h (1,200 mph). |
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