Using Webb’s near-infrared spectrograph, astronomers have captured new images of Neptune that finally reveal the planet’s mysterious auroral activity. Faint hints of Neptune’s auroras were first ...

For the first time, the James Webb Space Telescope (JSWT) has revealed bright auroral activity on the planet Neptune. Capturing the auroral activity on the ice giant has been long in coming ...

A team of astronomers announced on April 16, 2025, that in the process of studying a planet around another star, they had ...

Since colder temperatures lead to fainter auroral activity, that likely explains why it’s been so difficult to spot Neptune’s auroras—but it doesn’t explain why the ice giant cooled so ...

But Webb's observations didn't just provide new pretty pictures of the ice giant planet's greenish-blue splotches. It revealed how odd Neptune's auroras are compared to other planets', glowing ...

"Neptune was the missing piece of the puzzle when it came to detecting auroras on the giant planets," said the European Space Agency.

When NASA’s Voyager 2 mission flew by Neptune in 1989, it found tantalising hints of aurora activity in the ice giant’s clouds. However, scientists were unable to verify the phenomenon at the ...

Imagine a Slushee composed of ammonia and water encased in a hard shell of water ice. Now picture these ice-encrusted ...

The morning of April 24 will give rise to a striking mini-planetary parade, as Mercury, Venus, Saturn, Neptune, and Earth's ...

Observations of Jupiter show that ammonia is unevenly distributed in the upper atmosphere, against expectations of uniform mixing. Scientists found evidence for a complicated but apparently real ...