Add Yahoo as a preferred source to see more of our stories on Google. (AFP/Getty) Scientists have spotted a “rogue” planet floating on its own through space. Most of the planets we know are found ...

However, what constitutes a planet in particular is a question that may seem very simple but has been escalating in complexity as scientists discover new planets that defy the classical definition.

Astronomers have spotted a "rogue" planet gobbling gas and dust at a record rate, and they can't explain its baffling behavior. Although many rogue planets, which float freely through space without ...

The formation of planets is a fascinating process. They usually originate in a disc of dust and gas surrounding stars. When particles come together, they form a clump, and through a process called ...

While most planets that we are familiar with stick relatively close to their host star in a predictable orbit, some planets seem to have been knocked out of their orbits, floating through space free ...

Astronomers have detected a massive, lonely world drifting through the darkness without a star to call home. This Saturn-sized rogue planet was discovered by an international team of scientists using ...

Scientists have spotted a “rogue” planet floating on its own through space. Most of the planets we know are found orbiting as part of a star system, with one or more suns, just like our Earth and the ...