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Astronomers have just confirmed one of the strangest kinds of worlds imaginable, a planet drifting through the galaxy with no star of its own roughly 10,000 light-years from Earth. Instead of circling ...

Astronomers have observed a planet that in some ways behaves more like a star — including a massive growth spurt unlike anything witnessed before in a free-floating planet. The rogue planet, which ...

Scientists have spotted a “rogue” ­planet almost 100 times the size of Earth ­floating on its own through space. Most of the planets we know are found orbiting as part of a star system, with one or ...

An artist’s depiction shows a planet bending and magnifying the light of a distant background star through gravitational lensing. (Image: J. Skowron, K. Ulaczyk/OGLE) Astronomers have found direct ...