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

A newly discovered exoplanet is rewriting the rules of what planets can be. Orbiting a city-sized neutron star, this ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

For the first time, astronomers have directly measured the mass of a rogue planet, a celestial body wandering through space ...

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

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously ...

With sapphire waterfalls, lava rain and orbits around dead stars, these distant worlds push the limits of what’s possible.

Astronomers on Mauna Kea found the first space object on which NASA’s Roman Space Telescope can test its imaging technology. The work of Kauai muralist Trysen Kaneshige was acknowledged by the Kauai ...

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

Astronomers may have finally worked out how planets between the size of Earth and Neptune – which aren't found in our Solar ...