We actually know very little about what's going on inside Uranus and Neptune, causing researchers to propose that these planets be called "rocky giants" instead.

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 ...

What's behind the odd magnetic fields observed around ice giants? Why, quasi-1D superionic hydrogen, of course.

The Hubble Space Telescope has peered at Uranus, left, and Neptune to study the so-called "ice giant" planets, but little is known about their interior composition. - NASA / ESA / M. Showalter / L.

The interiors of Uranus and Neptune may be rockier than scientists previously thought, a new computational model suggests — challenging the idea that the planets should be called "ice giants." The new ...

Inside Uranus and Neptune, we expect carbon to form diamonds raining down towards the center. Now, new computer simulations ...

Scientists have identified a new "superionic" state of carbon and hydrogen that may exist deep inside Uranus and Neptune.

The deep interiors of ice giants such as Uranus and Neptune may contain a previously unknown form of matter, based on new computational research by Carnegie scientists Cong Liu and Ronald Cohen.

Neptune is the solar system's most distant planet, a cold, blue ice giant sitting nearly 30 times further from the sun than Earth. At that remote distance, temperatures plunge to nearly minus 200 ...

Both Neptune and Uranus have magnetic fields which aren’t yet fully understood. Uranus as a whole has a magnetic axis which is about 60 degrees off its spin axis, suggested that perhaps Uranus was ...

The interiors of ice giant planets like Uranus and Neptune could be home to a previously unknown state of matter, according to new computational simulations by Carnegie's Cong Liu and Ronald Cohen.