Photojournal: PIA01492

On Aug. 25, 1989, NASA's Voyager 2 spacecraft made a close flyby of Neptune, giving humanity its first close-up of our solar system's eighth planet. No other spacecraft has visited Neptune since.

This picture of Neptune was produced by images taken at a range of 4.4 million miles from the planet, 4 days and 20 hours before closest approach. The picture shows the "Great Dark Spot" — a storm in Neptune's atmosphere — and the bright, light-blue smudge of clouds that accompanies the storm.

Thirty-one years later, the RTG-powered Voyager 2 spacecraft is about 11.5 billion miles from Earth--one-way light time is more than 17 hours. Voyager 1 is even further.

To know exactly where the twin spacecraft are, visit Where Are the Two Voyagers Now?

To see all images of Neptune, visit the Voyager Gallery.




You Might Also Like