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

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

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

Known as the "Parade of Planets," the celestial event will feature appearances from Mars, Jupiter, Uranus, Venus, Neptune and ...

Exoplanets have captured the imagination of the public and scientists alike and as the search continues for more, researchers ...

Nothing says Savage Planet series quite like critters. From bouncing brains to enormous space whales, Revenge of the Savage ...

The best time to see this row of planets is on Friday evening (January 31) at 6.45pm UK time, according to Starwatch. If ...

Data collected by NASA's InSight lander suggest that ancient internal processes are responsible for the "Martian dichotomy" ...

Although it's being mistakenly promoted as a "rare planetary alignment," one of the best "planet parades" in half a century ...

Worlds will align for a "planetary parade" in January, with four bright and easily visible to the naked eye. But an even ...