Neptune (IMAGE) NASA/Goddard Space Flight Center Caption This Voyager 2 image of Neptune shows a cold and dark wind-whipped world. In 1989, NASA's Voyager 2 became the first and only spacecraft to observe the planet Neptune, passing about 3,000 miles above the planet's north pole. Credit NASA/JPL-Caltech Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.