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

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

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 Earth masses. Its distance away from us comes out to about 9,950–10,000 ...

Planets usually stay close to their host stars, tracing steady paths shaped by gravity. Yet some planets break free and drift alone through the Milky Way.

Thanks to an enormous stroke of luck and serendipitous timing, astronomers were able to calculate the mass and distance of a free-floating planet for the first time. Learn more about it.

Scientists measure a Saturn-sized rogue planet drifting through the Milky Way using rare Earth and space observations, revealing how planets can be ejected from their original systems.

Astronomers have confirmed a Saturn-size world drifting alone in deep space roughly 10,000 light-years from Earth, a discovery that turns a once-theoretical idea into a measured reality. The planet ...