Astronomers have used the James Webb Space Telescope (JWST) to discover that a distant "hot Jupiter" planet has two ...

"We reported hints of methane, but the question is, 'is the methane attributable to molecules in the atmosphere of the planet ...

Exoplanet TOI 1227 b is being bombarded by x-rays from its host red dwarf star, causing it to “shrink from the size of ...

After decades of searching, astronomers may have finally stumbled upon the first moon known to exist beyond our solar ...

Of the seven Earth-sized worlds orbiting the red dwarf star TRAPPIST-1, one planet in particular has attracted the attention ...

More research is needed before scientists can determine whether the recently observed methane signatures point to the presence of an atmosphere or are simply the result of contamination from the host ...

An international team including astronomers from the University of Geneva (UNIGE) and the National Center of Competence in ...

The RISTRETTO project, dedicated to observing Proxima b –the closest exoplanet to the Solar System — is reaching a new milestone: several key components of this high-precision spectrograph have been ...

Astronomers using the James Webb Space Telescope have captured dramatic helium streams pouring off the super-puff exoplanet ...

The James Webb Space Telescope finds WASP-121b leaking two long helium tails, offering new insight into atmospheric escape on hot Jupiter exoplanets ...

Astronomers observed giant helium clouds escaping exoplanet WASP-107b, revealing atmospheric loss and offering key insight ...

Analysis of early direct images from James Webb telescope show immense dust clouds on brown dwarf that lead to a blurring of ...