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

Revisiting old data from Voyager 2, scientists have worked out how a dense, shocked region of the solar wind could have ...

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

The solar system's oddball planet has some pretty odd moons, too. The first infrared spectra of Uranus's small inner moons, ...