Astronomers have detected a rogue planet roughly the size of Saturn wandering alone through the Milky Way. Unlike most ...

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

A young world drifting alone through space is putting on one of the most violent growth spurts astronomers have ever seen, ...

The team’s analysis points to a lensing object with a mass of 0.219 Jupiter masses, a touch lighter than Saturn or around 70 ...

A lucky alignment of space- and ground-based telescopes has enabled researchers to nail down the mass of a rogue planet for the first time. Unlike worlds in our Solar System, rogue planets do not ...

Scientists measured mass and distance of free floating planet drifting through space without star for first time.

WASHINGTON (Reuters) -Just as Earth orbits the sun, most planets discovered beyond our solar system orbit a host star. But some are out there all by themselves, called rogue planets. While their ...

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.

Most planets are part of a star system of their own – but some go their own way, and they have remained largely mysterious ...