Neptune, for example, has an atmosphere made of hydrogen and helium (with just a tinge of methane), and it doesn’t really have a surface—or, at least, not what we think of as a surface.

Scientists have uncovered the secret ingredient fueling supercharged storms on Uranus and Neptune: methane. Uranus and Neptune are the outermost planets of the solar system and are known as ice ...

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 ...

In infrared images, Triton’s frozen nitrogen surface makes it shine like a star, brighter than Neptune itself, because methane dims the planet in infrared light.

Neptune, for example, has an atmosphere made of hydrogen and helium (with just a tinge of methane), and it doesn’t really have a surface—or, at least, not what we think of as a surface.

NASA released the first images of this world on Wednesday. The third-largest planet in our Solar System, Neptune often appears bright blue in images due to the presence of gaseous methane.

Neptune is what planetary scientists call an ice giant, because it has a lot of molecules like methane, ammonia, and water inside, which planetary scientists call “ices” even though ...

Scientists have uncovered the secret ingredient fueling supercharged storms on Uranus and Neptune: methane. Researchers have long wondered why the storms on these planets are so unpredictable. Now ...