AN ALIEN planet with traces of water and “complex weather patterns like Earth” might be seen like a good contender for a ...

Planet Nine", dubbed, has fascinated scientists for its ability to account for "anomalous" motions of objects located faraway ...

A near-Earth object was likely ejected into space after an impact thousands of years ago. Now it could contribute new ...

Venus, Saturn, Jupiter and Mars are all visible after sunset, but social media claims about it being a rare "planetary ...

A new study suggests that a planet-sized object may have passed through the solar system billions of years ago.

New images of Mercury's surface have been released by the ESA, taken by the BepiColombo mission as it passed close to the planet's surface.

We have discovered thousands of exoplanets in the last few decades, while the number of planets in the Solar System has remained at eight – but our discovery of more might not yet be over.

There may be an undiscovered planet in the outer solar system whose presence is revealed by the strange orbit of objects beyond the eighth planet Neptune. The tantalizing prospect of a ninth ...