Hubble Space Telescope imagery Neptune has revealed that the planet's clouds are disappearing. Credit: NASA Goddard Space ...

European astronomers report the discovery of a second alien world in the TOI-1422 planetary system located some 500 light ...

It's been one Neptunian year—or about 165 Earth years—since astronomers first observed the most distant planet from the sun.

The James Webb Space Telescope's Near-Infrared camera (NIRCam) captured stunning imagery of Neptune. It is the "clearest view ...

Scientists have long assumed that, like rocky planets such as Earth, sub-Neptunes begin with molten magma oceans. Their thick hydrogen-rich atmospheres were thought to trap heat efficiently, allowing ...

A new study of the red dwarf system TOI-3884 has uncovered rare, persistent spot-crossing signals that reveal unusually detailed information about the star’s magnetic activity and the planet’s orbital ...

Voyager 1 and 2 traveled billions of miles to reach the heliopause, showing how the Sun's magnetic influence marks the ...

On 23 November, skywatchers were stunned as Saturn looked strangely bare in the night sky, a rare cosmic moment that made its ...

"Similar to the asteroid belt, the Kuiper Belt is a region of leftovers from the solar system's early history. Like the ...

Saturn’s rings appeared to disappear on November 23 due to a rare optical illusion. The phenomenon, which occurs every 13 to 15 years, happens when the rings line up perfectly edge-on with our planet.

Cutting-edge simulations show that Enceladus’ plumes are losing 20–40% less mass than earlier estimates suggested. The new ...

In the search for extraterrestrial life, the presence of water is a key signature of possible habitability. Identifying why ...