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 ...

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 cold and remote planets originally earned their label of "ice giants" to contrast their interiors from those of Jupiter and Saturn, the so-called "gas giants" rich in hydrogen and helium. Uranus ...