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

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 ...

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

January always comes with a certain feeling. Once the holiday excitement fades, everything becomes quieter, cooler, and more thoughtful.

On Dec. 14, 2012, a gunman killed 27 people, including 20 children at Sandy Hook Elementary School in Newtown, Conn., then ...

New simulations suggest Uranus and Neptune may contain far more rock than ice, offering fresh explanations for their unusual ...

The James Webb Space Telescope has captured amazing new imagery of Uranus along with its rings and moons. The footage shows ...

Researchers have uncovered evidence that Uranus and Neptune could be far rockier on the inside than anyone expected.

Conversations could open doors we didn’t expect. Early missteps from fiery Mars challenging unpredictable Uranus may test ...

Fresh simulations show there is a chance Uranus and Neptune might actually be rock-rich worlds wrapped in thinner icy layers.

The cold and remote planets originally earned their label of "ice giants" to contrast their interiors from those of Jupiter ...