Mathematicians calculated where the planet might be based on its effects on Uranus, and astronomers searched for less than an ...

The James Webb Space Telescope's Near-Infrared camera (NIRCam) captured stunning imagery of Neptune, its rings and moons. It ...

September 10 has long been a date marked by significant moments that have shaped history across the world.

Webb uncovers methane on Makemake, showing the icy dwarf planet is more active than once thought - just like Pluto.

Among the most famous images taken by the Voyager spacecraft are those of Uranus and Neptune. When you think of these planets, you’re likely imagining them based on the images taken by Voyager 2 in ...

The coldest planet in the Solar System is Uranus, which is surprisingly colder than Neptune due to its unique internal heat ...

The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...

Artist’s concept of a Neptune-sized planet, left, around a blue, A-type star. UC Berkeley astronomers have discovered a hard-to-find gas giant around one of these bright, but short-lived, stars, right ...

An enigmatic, cloud-enshrouded planet that has puzzled astronomers for years turns out to be less hot than expected – and surprisingly shiny. That's what the James Webb Space Telescope revealed when ...