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

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

A lonely world the size of Saturn is drifting through the Milky Way with no star to warm it, and for the first time ...

Astronomers have detected an exoplanet with a highly oblong orbit that experiences wild temperature swings — and it may be transitioning into another type of world. The exoplanet, named TIC 241249530 ...

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

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

One of the biggest recent surprises in astronomy is the discovery that most stars like the Sun harbor a planet between the ...

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

New simulations examine whether the seven planets in the TRAPPIST-1 system could host moons, showing that only small, close-orbiting moons could remain stable over long periods ...

Astronomers at Princeton University have uncovered evidence that the outer solar system is more structured than long believed ...

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

NASA's Kepler mission has found the first multi-planet solar system orbiting a binary star, characterized in large part by University of Texas at Austin astronomers using two telescopes at the ...