When Voyager returned the first detailed pictures of Neptune in the summer of 1989, we got our first glimpse of the cloud features in its distant sky. Since then, astronomers have followed up those ...

Neptune’s clouds have disappeared. Since the first detailed images of the planet were taken by the Voyager 2 spacecraft in 1989, its cerulean disc has been criss-crossed by wispy white clouds, but its ...

Billions of miles (kilometers) from the Sun, Uranus and Neptune are the most distant planets in our Solar System. Long ...

Neptune receives a tiny fraction of the sunlight that strikes Earth, yet somehow, that’s enough to transform the clouds of this faraway world. The main driver of cloud formation is generally the ...