The James Webb Space Telescope captured unprecedented images of greenish-blue auroras on the ice giant planet Neptune.

Hints of auroras were first faintly detected in ultraviolet light during a flyby of the Voyager 2 spacecraft in 1989. Webb captured Neptune's shimmering lights in infrared light, providing direct ...

From the Webb observations, the team also measured the temperature of the top of Neptune's atmosphere for the first time since Voyager 2's flyby. The results hint at why Neptune's auroras remained ...

When Voyager 2 flew past Neptune in 1989, it revealed jaw-dropping discoveries beneath the planet’s clouds. What did we learn about Neptune’s violent atmosphere, hidden storms, and its Great ...

A solar wind event squashed the protective bubble around Uranus just before Voyager 2 flew by the planet in 1986, shifting how astronomers understood the mysterious world.

Voyager captures Neptune: Clicked on October 14, 1999 by NASA Voyager 2, this photo of Neptune shows three distinct features of the planet, including the Great Dark Spot at the North.

During the Voyager 2 flyby, the spacecraft observed a vortex amid Neptune’s clouds that scientists later dubbed as the Great Dark Spot.

NASA has powered off one of Voyager 2's science instruments to stretch the power supply and stave off the need for Voyager 2 to shut down.

Voyager 2, NASA's longest-running mission, explored Neptune during a historic encounter on Aug. 25, 1989, sending back humanity's first close-ups of the planet.

While Voyager 1 ended its planetary mission after Saturn, Voyager 2 completed a 12-year journey to Neptune. But they didn't stop there!