We actually know very little about what's going on inside Uranus and Neptune, causing researchers to propose that these ...

Uranus and Neptune have been called the “ice giants” for decades. But in new research, that nickname might be more a misnomer ...

Uranus and Neptune are the two furthest planets in the Solar System and have been visited only once by human spacecraft – by ...

Astronomers have found signs that the small icy world Chiron, orbiting between Saturn and Uranus, may be forming a new ring ...

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They’re running rings around Uranus. New research suggests a moon orbiting the sophomoric-sounding planet might contain enough natural resources to support alien life. Scientists from Johns Hopkins ...

Astronomers with the International Astronomical Union have discovered three previously unknown moons at the farthest planets of our solar system — two circling Neptune and one around Uranus. The moons ...

Neptune is not as blue as you’ve been led to believe, and Uranus’s shifting colors are better explained, in new research. By Becky Ferreira Think of Uranus and Neptune, the solar system’s outermost ...

WASHINGTON (AP) — Uranus is a lopsided oddity, the only planet to spin on its side. Scientists now think they know how it got that way: It was pushed over by a rock at least twice as big as Earth.

Evidence points to a long-lost ocean beneath Ariel’s icy crust. Tides and orbit shifts may have cracked its surface billions of years ago. Growing evidence indicates that a deep ocean may lie hidden ...