After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the ...

Suppose a map of these United States were drawn on ... and a half miles in diameter would include all the members of our solar system; but on this scale the nearest fixed stars would be nearly ...

Last month, Google quietly killed off Google Sky Maps. But there’s still another way to virtually explore most of the solar system a la Google Maps: it’s called Google Maps in Space.

A new ‘map’ of distant planets has been unveiled by scientists ... these planets share similar characteristics to our own ...

The Subaru Telescope has discovered new objects beyond the known Kuiper Belt, suggesting a more complex structure at the edge ...

Around our solar system, violent eruptions are shaping distant ... and explore the surface of Mars in such detail that we could map out things the size of a desk on the surface.

Everyone knows about the Solar System, and the planets that make it up. They’re in space, orbiting the Sun, in an order we all at least used to be able to recite. But it was not always so.

Earth is far from the only celestial body in the Solar System.