Astronomers have finally pinned down both the mass and distance of a solitary “rogue” planet, a world that drifts through ...

The galaxy is expected to be home to billions of free-floating, or "rogue", planets that have no stellar companion. These ...

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

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

Most of the planets we’ve identified are in orbit around stars and formed from the disks of gas and dust that surrounded the ...