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

Solar system is a collection of various celestial bodies that are held together by the gravitational pull of the sun. Our ...

Space is loaded with strange things—black holes, pulsars, gigantic clouds of alcohol, and more weird planets than you could count. Even our own solar system has some oddballs—like Neptune. Neptune’s ...

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 ...

We’ve got a pretty good idea about what’s beneath the surface of our nearest planetary neighbors, like Mars. But as you get farther out into the solar system, our knowledge becomes scarce. For ...

WASHINGTON (AP) — Astronomers have found three previously unknown moons in our solar system — two additional moons circling Neptune and one around Uranus. The distant tiny moons were spotted using ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The find includes ...

A study suggests the ice giants Uranus and Neptune aren't quite as watery as previously thought. They may also contain huge amounts of frozen methane, potentially solving the puzzle of how they formed ...

The New Horizons spacecraft will take images of the ice giants from "behind." NASA is asking amateur astronomers to help the agency study the ice giants Uranus and Neptune. Next month, NASA will be ...

Assuming you’ve accepted Pluto’s demotion, Uranus and Neptune are the two planets in our Solar System farthest from Earth. That distance means humanity is still learning a lot about them. Some of ...