Almost 10 years ago, a NASA spacecraft was able to take several photos of Pluto, known for decades as a planet before it was ...

"That was based on some irregular motions, or apparent irregular motions, of [Uranus and Neptune]." He called this ...

A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is ...

The relative quantities of volatile gases like methane and ethane can reveal key details about distant Kuiper Belt objects.

To progress in Look Outside you’ll need to collect a full set of planet discs — each disc has a number associated with it, ...

Neptune, Uranus and Pluto all changing signs, moving from water and earth signs to fire and air signs. A familiar thread astrologers will use when mapping out the energetic themes of a timeframe is to ...

Take your time responding to questions and demands near the 17th. Many changes are in the wind as April winds down, and ...

Pluto was once called the ninth planet, but in 2006, scientists changed its status to a dwarf planet. A planet must clear its orbit of other objects, but Pluto shares its space with many small icy ...

Planets' temperatures are largely influenced by their structural characteristics and proximity to the Sun, however, Venus ...