Although they are technically gas giants, Uranus and Neptune are referred to as "ice giants" due to their composition.

For decades, school posters and science museum displays have grouped Uranus and Neptune together as “ice giants,” a tidy ...

Perhaps it's time to rebrand.

New research suggests Uranus and Neptune may not be true ice giants, with rocky interiors dominating instead, challenging ...

A new study suggests that Uranus and Neptune may not be ice-rich planets after all. Researchers from the University of Zurich propose that these distant worlds could be dominated by rock, challenging ...

Uranus sits far beyond the orbit of Saturn, yet its smallest moons are suddenly at the center of a quiet revolution in outer ...

The two outermost planets in the solar system are generally considered ice giants, yet we know little about their interiors.

Uranus and Neptune may not be the icy worlds we’ve long imagined. A new Swiss-led study uses innovative hybrid modeling to ...

Because Uranus and Neptune are so far away, scientists only have educated guesses about the combination of ices and gases that make up these ice giants. While the general understanding is that these ...

New models suggest Uranus and Neptune may hold far more rock than expected, raising questions about how these distant planets formed.

Uranus and Neptune have been called the “ice giants” for decades. But in new research, that nickname might be more a misnomer than anything. A study by the lead researchers astrophysicists Luca Morf ...

Hydrogen sulfide, the gas that gives rotten eggs their distinctive odor, permeates the upper atmosphere of the planet Uranus – as has been long debated, but never definitively proven. Based on ...