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 ...

NASA discovers something on Neptune and Uranus: "There are more than 5000" The ice giants of the solar system have long been ...

Six planets are lining up in a row from our Earthly view of the cosmos, in a spectacle that'll be visible in January through ...

More evidence for a hypothetical extra planet lurking in the most distant reaches of our solar system has come to light — and the clues are associated with icy bodies that cross the orbit of ...

A planetary alignment occurs when several planets gather on one side of the Sun, appearing to form a line from our ...

Mars, Venus, Jupiter, and Saturn shine bright in a rare planetary parade; Uranus and Neptune need a telescope to spot.

A planet’s opposition occurs when Earth passes between it and the Sun. As a consequence of that geometry, Neptune’s disk will appear to be 100% illuminated as seen from Earth. It will be 180º ...

On the evening of February 28, stargazers will witness a rare celestial event: an alignment of seven planets visible ...

A very rare treat is about to grace Earth's night skies.