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, ...

Methane gas in Neptune’s atmosphere absorbs most of the red sunlight hitting the planet, making it look blue-green. The image was created by combining images in red, green, and blue light.

This vortex is the first one observed on Neptune in the 21st Century. NASA officials said Neptune’s dark vortices are high-pressure systems and are usually accompanied by bright companion clouds.

A newly discovered distant mini-Neptune planet may possess its own atmosphere, ocean, or a combination of the two, even if they don't last for long. The extrasolar planet, or exoplanet, designated ...

This map showed a big change in temperature between the mini-Neptune’s day and night sides — only possible if its atmosphere is made of heavier molecules, such as water or methane. pic.twitter ...

It’s a pretty extreme system.” Hot Neptune LTT 9779b was discovered just last year, becoming one of the first Neptune-sized planets discovered by NASA’s all-sky TESS planet-hunting mission.

Researchers observed exoplanet GJ 1214b's atmosphere by measuring the heat it emits while orbiting its host star. Astronomers directly detected the light emitted by a sub-Neptune exoplanet -- a ...

“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 ...

Over the past few years, the white clouds that usually shroud Neptune’s surface have disappeared, and it may be because of changes in the sun’s activity over its 11-year cycle ...