For decades, Uranus and Neptune have been filed neatly into the “ice giant” drawer, shorthand for worlds built mostly from ...

For decades, Uranus and Neptune have carried the tidy label of “ice giants,” shorthand for worlds built mostly from frozen ...

Far from the Sun, Uranus sits tipped on its side, carrying a magnetic system unlike any other planet’s. Its equator tilts ...

Recent research suggests that Uranus and Neptune, long classified as “ice giants,” might instead be rock giants.

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

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. Credit: NASA / ESA / M. Showalter / ...

The "ice giants" of the Solar System – Uranus and Neptune – remain the least explored of any planets orbiting our Sun. Thanks to the sheer distance between them and Earth, the first probe to ever ...

In 1986, NASA’s Voyager 2 provided the only direct measurement of the radiation environment at Uranus. These findings established the well-accepted characterization of a system with a weaker ion ...

When Voyager 2 made its historic flyby of Uranus in 1986, the spacecraft captured the best data humanity had gathered on the giant planet up to that point. But as scientists become better at analyzing ...

Every generation of science teachers has faced the same cosmic dilemma: how do you say Uranus without triggering a room full of laughter? The seventh planet from the Sun may be an ice giant, but its ...

Southwest Research Institute (SwRI) scientists believe they may have resolved a 39-year-old mystery about the radiation belts around Uranus. In 1986, when Voyager 2 made the first and only flyby of ...