Jupiter, as always, is a dazzling object, shining among the stars of Gemini the Twins. It reaches opposition on Jan. 10; this ...

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

Scientists have discovered a rogue planet roaming the Milky Way after combining observations from Earth and a space telescope ...

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

Every planet in the solar system leans, some gently, some dramatically, and that tilt quietly shapes everything from our ...

The upcoming year will offer a blood-red moon, spectacular meteor showers and the first glimpse of the sun’s corona since ...

Astronomers just measured the mass of a free-floating planet without a star for the first time ...

Webb telescope discovered a bizarre exoplanet with carbon atmosphere, no hydrogen, orbiting a super-dense spinning star.

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

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

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

One of the primary goals of the James Webb Space Telescope (JWST) is to detect atmospheres around exoplanets, to try to suss ...