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

Exoplanets come up a lot these days, usually in headlines about distant stars, strange atmospheres, or the possibility of ...

Astronomers from the University of Geneva, working with colleagues in Canada and the United States, have captured the ...

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

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

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

In doing so, they found this orphan is within the same weight class as Saturn, strengthening the case that the galaxy teems ...

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

Scientists using the James Webb telescope observed a distant exoplanet with an atmosphere of soot and diamonds, challenging ...

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

No planets cooler than about 35.33 degrees Fahrenheit had ever been detected. An exoplanet discovered in 2020 contains the coldest temperatures ever measured on a planetary body, according to ...

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