Get the facts on this planet of extremes. Orbiting the Sun at a distance of 4.5 billion kilometres - more than 30 times further out than the Earth - Neptune is a dark, icy world. Receiving just one ...

The two most distant planets in our solar system look more like each other than was previously thought, experts have found. Many people think of Neptune as being a rich blue colour, and Uranus ...

Astrophysicists have once again enriched our knowledge of the cosmos with a new discovery: two small planets orbiting ...