Neptune is an ice giant, composed primarily of hydrogen, helium, and methane, with a hot, dense fluid of icy materials above a small rocky core. Neptune has 14 known moons and at least five main rings ...

Though they are different colors (Neptune is bluer than Uranus' cyan hue) and have different numbers of rings and moons, both planets ... 8.682 x 10^25 kg (about 14 times the mass of Earth).

It took this image of Neptune and its moon Triton, one of 77 composite photographs that appeared in our 2016 exhibition, Otherworlds: Visions of our Solar System, before speeding towards interstellar ...

The International Astronomical Union’s Minor Planet Center has announced the discovery of three previously unknown moons of Uranus and Neptune. The latest addition brings Uranus's total moon ...

A quick guide to the planet Neptune, which is composed mainly of water. It has many moons and the fastest winds in the solar system. They blow up to 2000km per hour. NOTE: This clip was factually ...