Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

It is not often that all the planets in the Solar System other than ours are lined up across the night sky for us to see.

THE search for alien life across our Solar System and beyond has so far kicked up nothing intelligent – let alone microbial.

Stargazers will be treated to a dazzling six-planet "alignment" this January.

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

This provides another piece of the puzzle to understand how planets and ... New studies offer a clearer picture of how the outer solar system formed and evolved based on analyses of trans ...

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...