The most elusive planetary aurora in the Solar System has finally been revealed in all its gently glowing glory. Far from the Sun, and Earth, the sky-blue planet Neptune has been captured shimmering ...

At the left, an enhanced-color image of Neptune from the NASA/ESA Hubble Space Telescope. At the right, that image is combined with data from the NASA/ESA/CSA James Webb Space Telescope. The cyan ...

“We hoped to demonstrate that the mechanism we believe is acting in the gas giants Jupiter and Saturn can explain equatorial ...

A unique view: These pictures of Neptune were obtained by NASA Voyager 2 on April 26,1989. The picture on the top was taken five hours after that at bottom, during which time the planet rotated 100 ...

On this much-anticipated astronomical moment, on September 23, 2025, Neptune will reach its opposition. This day coincides with the autumn equinox, meaning that the duration of daylight and nighttime ...

NASA's James Webb Space Telescope has peeled back the layers on sub-Neptunes, a type of gassy exoplanet scattered in large numbers throughout the universe. While sub-Neptunes' thick atmospheres have ...

How much atmosphere is too much for life? As scientists discover more super-Earths and mini-Neptunes, the question becomes more relevant. Often, the rocky cores of these planets are believed to be ...

NASA's James Webb Space Telescope (JWST) has found water swirling in the air of a distant alien planet, a new study reports. That exotic world is TOI-421 b, a boiling-hot "sub-Neptune" orbiting a star ...