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Neptune's mysterious, far-flung moon Nereid may be the last of the planet's original companions. Scientists at the California Institute of Technology reported Wednesday that they used NASA's Webb ...

The interiors of ice giant planets like Uranus and Neptune could be home to a previously unknown state of matter, according to new computational simulations by Carnegie's Cong Liu and Ronald Cohen.

Because Uranus and Neptune are so far away, scientists only have educated guesses about the combination of ices and gases that make up these ice giants. While the general understanding is that these ...

"Although the familiar Voyager 2 images of Uranus were published in a form closer to 'true' color, those of Neptune were, in fact, stretched and enhanced, and therefore made artificially too blue." ...

Could Uranus and Neptune be full of rocks? One new study thinks so. Uranus and Neptune are two planets that have historically been classified and thought of as "ice giants," orbiting far out in the ...

Scientists recently noticed three new moons lingering around Uranus and Neptune, which are the most distant planets in our solar system. Precisely, there is one orbiting Uranus, and two are orbiting ...

Astronomers have long believed that the ice giants Uranus and Neptune are rich in frozen water. However, a new study suggests they may also have tons of methane ice. The findings could help solve a ...

In pictures of the farthest planets from the sun, Uranus looks like a pale-green orb, while Neptune usually looks much bluer. A new analysis revealed their true colors. Here's NPR's Nell ...

While the most famous planetary spot in the solar system would have to be Jupiter’s Great Red Spot, an epic storm 10,000 miles wide that has been raging for hundreds of years, other planets are known ...

The International Astronomical Union’s (IAU) Minor Planet Center announced the discovery of three new moons in our solar system Feb. 23. Uranus has one additional moon, while Neptune has picked up two ...