Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. A composite image of Uranus ...

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.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. We might have been very wrong about exactly what lurks below the ...

Uranus and Neptune may not be the icy worlds we’ve long imagined. A new Swiss-led study uses innovative hybrid modeling to reveal that these planets could just as easily be dominated by rock as by ...

Uranus and Neptune remain two of the most mysterious objects in the solar system, primarily because they have been visited only by NASA's Voyager 2 spacecraft in 1986 and 1989, respectively. Their ...

Add Yahoo as a preferred source to see more of our stories on Google. Credit: NASA, ESA, Mark Showalter (SETI Institute), Amy Simon (NASA-GSFC), Michael H. Wong (UC Berkeley), Andrew I. Hsu (UC ...

Before the Voyager 2 flyby of Uranus and Neptune, these two distant planets were thought to be cold, dead worlds on the outskirts of the solar system. The historic spacecraft visit, however, revealed ...

Uranus and Neptune have been called the "ice giants" for decades. But in new research, that nickname might be more a misnomer than anything. A study by the lead researchers astrophysicists Luca Morf ...

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 ...

Uranus and Neptune are the outermost planets of the solar system. In size, possibly bulk composition, and their large distance from the Sun they are similar and clearly segregated from the inner ...

Astronomers announced that they have discovered new moons around Neptune and Uranus. The International Astronomical Union's Minor Planet Center published its findings Friday, showing the first new ...

Astronomers have long called Uranus and Neptune the "ice giants" because models suggested that these outer planets' interiors are largely made of mixtures of water, ammonia and other ices — compounds ...