In the cold, dark outskirts of planetary systems far beyond the reach of the known planets, mysterious gas giants and ...

As the rocky planets begin to settle into their orbits, Proto-Earth and Thea uncover the Sun’s true purpose for the Solar ...

Astronomers find evidence of a possible ninth planet beyond Neptune, reigniting the debate about the formation of the Solar ...

Between May 20 and 24, the moon, Saturn and Venus will meet in a mini 'planetary parade,' becoming visible in the northern ...

Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million ...

A new dwarf planet, discovered beyond Neptune and described as Pluto's 'cousin,' could void the hypothesis of a Planet X in ...

Jupiter may have once been more than twice its current size, with a magnetic field 50 times stronger, say scientists who ...

A team of researchers has recently claimed they have discovered a gas called dimethyl sulfide (DMS) in the atmosphere of ...

NASA believes that the month of May brings visibility to four planets, a new star from a nova, a chance of meteor showers and ...

A new study from the University of Arizona reveals an unexpected way that planets' cores might form in our solar system.