Scientists have discovered more than 6,000 planets beyond our solar system. What if some of them aren't planets at all, but ...

Astronomers have finally weighed a wandering “rogue” planet, uncovering a Saturn-mass world flung into the galaxy after a ...

Just because Pluto was ruled out as a planet in 2006 doesn’t mean our solar system only has eight planets. The search for Planet Nine is far from over as scientists continue to uncover clues ...

The asteroid is currently located in the constellation of Lynx, at a distance of more than 1.9 million miles (3.2 million ...

In doing so, they found this orphan is within the same weight class as Saturn, strengthening the case that the galaxy teems ...

A free-floating planet drifting through space is being closely followed by scientists who are managing to find out more about ...

It's estimated there may be trillions of rogue planets wandering through the Milky Way, unbound to any star. Since detecting our first ones, we have been presented with an odd mystery.

While most planets that we are familiar with stick relatively close to their host star in a predictable orbit, some planets ...

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Around the bright star Fomalhaut, astronomers spotted glowing clouds of debris left behind by colossal collisions between ...

The first known interstellar object to pass through our solar system is likely a piece of a Pluto-like planet from another solar system, according to a new study published as a pair of papers today in ...