Neptune, the farthest planet from the Sun, has long been a subject of fascination for astronomers, especially due to its ...

Neptune is big, it’s blue, and it is a planet that can tear you apart if you happen to drop into one of its massive, ...

“I was astonished — Neptune’s upper atmosphere has cooled by several hundreds of degrees,” Melin said. “In fact, the temperature in 2023 was just over half of that in 1989.” ...

30 years ago in 1989, @NASAVoyager 2 made a close flyby of Neptune, giving humanity its first close-up of our solar system's eighth planet. Wrapped in teal- and cobalt-colored bands of clouds, the ...

More information: Louis-Philippe Coulombe et al, Highly reflective white clouds on the western dayside of an exo-Neptune, Nature Astronomy (2025). DOI: 10.1038/s41550-025-02488-9 ...

The detection that GJ 3470b, a warm Neptune at the border of the desert, is fast losing its atmosphere suggests that hotter Neptunes may have eroded down to smaller, rocky super-Earths.

PARIS -- Scientists say that Neptune, one of the coldest planets in the solar system, has a surprising warm spot -- relatively speaking. An international team of astronomers has found that Neptune ...

In a groundbreaking study, astronomers describe the strange atmosphere of a Neptune-like exoplanet more than 400 light years away. The discovery could yield vital clues about our own solar system.

Webb Telescope Unwraps Sub-Neptune's Mysterious Atmosphere Webb is helping scientists understand these gassy exoplanets 'in a way that was not possible prior to the telescope’s launch,' NASA says.

It’s a challenge, no doubt about it, but now’s as good a time as any to search because this week Neptune reaches its opposition point when it not only lies at its nearest to Earth — about 2. ...