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

Not all planets are lucky enough to live in a neighborhood like our Solar System – some are doomed to roam the cosmos alone.

Researchers have confirmed the mass of a free-floating planet thanks to a lucky convergence of ground- and space-based ...

Astronomers believe the free-floating planet is around 22 percent the mass of Jupiter and lies 3,000 parsecs from the Milky ...

What planet is most like Earth? Reseachers have identified several exoplanets similar to our planet, but none that are an ...

New images from NASA 's Hubble Space Telescope have revealed an enormous, oddly shaped disk of gas and dust around a single ...