WASP-121b, an already unusual planet, might have a remote origin that explains some of its peculiar properties—from iron rain ...

WASP-121b is unlike anything in our Solar System. This giant planet orbits its star so closely that it completes a full orbit ...

Learn more about WASP-121b, the exoplanet so hot it could vaporize iron.

A pair of new studies has revealed that the hellish skies of exoplanet WASP-121b contain silicon monoxide gas, which has never been found in any planetary atmosphere to date.

Astronomers using the James Webb Space Telescope have uncovered the fiery origin of WASP-121b, a distant exoplanet stretched by tidal forces and rich in chemical clues that reveal its dramatic ...

Observations from the James Webb Space Telescope reveal new details about WASP-121b’s formation and unexpected atmospheric behavior.

WASP-121b continued attracting carbon-rich gas after the flow of oxygen-rich pebbles had stopped, setting the final composition of its atmospheric envelope. As the temperature of an atmosphere changes ...

How do ultra-hot Jupiters form and evolve? This is what a recent study published in Nature Astronomy hopes to address as a team of researchers investigated the origins of WASP-121b, which is an ...

Observations with the James Webb Space Telescope (JWST) have provided new clues about how the exoplanet WASP-121b has formed and where it might have originated in the disc of gas and dust around its ...

For WASP-121b, methane pebbles evaporated, enriching its atmosphere with carbon, while water pebbles stayed frozen, trapping oxygen. This led to WASP-121b accumulating mostly carbon-rich gas, shaping ...