#JWST

Observations of TOI-199b with the James Webb Space Telescope identified methane in the atmosphere of a cooler gas giant, supporting long-standing models.

Using JWST’s mid-infrared instrument, researchers studied the hot dayside of LHS 3844 b and found a barren rocky world with no atmosphere and a surface unlike Earth’s crust.

New research proposes an explanation for the unexpectedly massive black holes that the James Webb Space Telescope has found in the universe’s first billion years.

New research argues that exceptionally powerful quasars in the early universe frequently drove galaxy-scale outflows strong enough to strip star-forming gas and help create the quiescent galaxies seen by JWST.

New James Webb Space Telescope observations of the planetary nebula Tc 1 are giving astronomers a sharper view of where buckminsterfullerene, or C60, emerges in space and how complex carbon chemistry develops around dead

A newly identified X-ray bright object in the young universe could offer astronomers a missing link in the debate over what JWST’s mysterious little red dots really are.

A new preprint reports that James Webb Space Telescope observations sharpened measurements of two TOI-700 planets but could not confirm an Earth-Moon-like system because the host star’s own variability overwhelmed the ex

A new analysis of James Webb Space Telescope observations indicates that interstellar comet 3I/ATLAS contains abundant methane, offering a rare chemical snapshot of material formed around another star.

Observations of two dwarf galaxies in the Virgo Cluster suggest past mergers stripped away stars and left behind disproportionately massive black holes, including one that appears displaced from its galactic center.

Direct observations of 29 Cygni b are giving astronomers a clearer look at the murky transition zone between giant planets and brown dwarfs.

Astronomers are revisiting TOI-5205b, a Jupiter-mass world orbiting a small M-dwarf, because systems like it do not fit neatly with standard expectations about how planets emerge from protoplanetary disks.

New James Webb observations of the Milky Way’s W51 region are exposing young stars and intricate structures previously obscured by dust, while comparisons with ALMA also show how much of star formation still remains ve,

A galaxy seen just 400 million years after the big bang appears to show the strongest evidence yet for Population III stars, the extremely hot, metal-free objects thought to have lit up the early universe.

The James Webb Space Telescope has identified L 98-59 d, an exoplanet with a molten rock ocean beneath its surface that traps enormous amounts of sulfur, creating atmospheric chemistry unlike any known world in our solar system.

First infrared spectra of Jupiter's auroral bright spots reveal extreme temperature and density swings that challenge existing models.

Scientists have created the first three-dimensional map of Uranus's upper atmosphere using the James Webb Space Telescope, revealing how the planet's bizarre tilted magnetic field creates complex auroral patterns and drives atmospheric cooling. The 15-hour observation session captured faint molecular emissions up to 5,000 kilometers above the clouds.

The Vera C. Rubin Observatory and JWST are poised to increase the catalog of known Kuiper Belt objects tenfold, revealing hidden structures and possibly unseen planets in the solar system's outer frontier.