The Kepler-10 planetary system is clearly a place of extremes. It has a small, Earth-sized world that is half scorched, the ...

A planet circling at a sharp 90-degree angle to the orbits of its two host stars has now been confirmed. This discovery ...

NASA's James Webb Space Telescope has found water vapor swirling in the air of a distant, boiling-hot alien planet, a new ...

New views of TOI-421 b by JWST gives insight into how the most common type of planet in the galaxy might form.

By comparing those fingerprints to 20 different molecules that they would potentially expect to observe in the atmosphere, ...

A rare and dramatic scene unfolds 140 light-years from Earth. A rocky planet, once whole, is now crumbling to dust under the ...

Though they don't orbit around our sun, sub-Neptunes are the most common type of exoplanet, or planet outside our solar ...

Astronomer Eliza Kempton said that she had waited her "entire career" to peer into an atmosphere from this mysterious class of planets.

The idea that our Solar System is representative of other solar systems hasn't survived the age of exoplanet discovery.

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...