We actually know very little about what's going on inside Uranus and Neptune, causing researchers to propose that these ...

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

Uranus and Neptune have been called the “ice giants” for decades. But in new research, that nickname might be more a misnomer than anything.

NASA/ESA Hubble Space Telescope, Gemini North telescope and NASA Infrared Telescope Facility observations of Neptune and Uranus may have revealed why they differ in color. Credit: Directed by: Bethany ...

Astronomers using the Hubble Space Telescope have uncovered the remains of a frozen, Pluto-like world being devoured by a ...

For decades, Uranus baffled scientists because it seemed to have no internal heat. Now, new computer modeling shows the ...

A new study rules out the existence of global oceans of water on Neptune-like planets such as K2-18b, finding their water ...

Astronomers using the Hubble Space Telescope have observed a white dwarf - a highly compact stellar ember - that appears to have gobbled up an icy world akin to the dwarf planet Pluto, a finding with ...

An artist's rendering of two comets that will make a near-earth passes later this month. The first, known as SWAN, will pass ...

Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...

New research suggests that planets outside our solar system contain far less surface water than scientists once believed. Contrary to earlier theories that these exoplanets might be covered by deep ...

This peculiar behavior has long fascinated scientists, particularly after NASA’s Voyager 2 flyby of Uranus in 1986. The ...