Neptune is the solar system's most distant planet, a cold, blue ice giant sitting nearly 30 times further from the sun than Earth. At that remote distance, temperatures plunge to nearly minus 200 ...

Sean is scared of flying out to visit Neptune./The kids celebrate Jet's Earthday birthday. Sean's nervousness about flying out to visit the remote Neptune is soothed by Jet's suggestion - an ...

The planet Neptune shines a serene blue in this image assembled from two photos by NASA's Voyager 2 probe during its historic flyby of the planet in August 1989. Neptune reaches an orbital milestone ...

A strange dark spot on Neptune has been observed from Earth for the first time, offering fresh clues into how these marks form. In 1989, NASA’s Voyager 2 space probe detected a shadowy region on ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A planet’s opposition occurs when Earth passes between it ...

The deep interior of Neptune, Uranus and Earth may contain some solid ice. Through first-principle molecular dynamics simulations, Lawrence Livermore National Laboratory scientists, together with ...

Neptune from Voyager 2 spacecraft, c1980s. The Voyager 2 space probe was launched by NASA in August 1977. The purpose of the Voyager programme was to study the outer Solar System. Artist NASA. (Photo ...

Of all the potential super-Earths—terrestrial exoplanets more massive than Earth—out there, an exoplanet orbiting a star only 40 light-years away from us in the constellation Cetus might be the most ...

NASA and Europe's Hubble Space Telescope keeps an eye on distant planets, watching for changes in their weather. Hubble has discovered a new and mysterious "dark tempest" on Neptune that's 6,800 miles ...

Using ESO's Very Large Telescope (VLT), astronomers have observed a large dark spot in Neptune's atmosphere, with an unexpected smaller bright spot adjacent to it. This is the first time a dark spot ...