Most cosmologists believe that these stars were the first large, free-floating structures to illuminate our universe, and ...

The James Webb Space Telescope has captured imagery of spiral galaxy NGC 7469, which is 90,000 light-years in diameter. The galaxy is "roughly 220 million light-years from Earth in the constellation ...

Pan across the James Webb Space Telescope's view of the Cosmic Cliffs, "a region at the edge of a gigantic, gaseous cavity within the star cluster NGC 3324," according to NASA/ESA. NGC 3324 is within ...

NASA's Goddard Space Flight Center is making drastic changes following severe budget cuts proposed by the Trump ...

Astronomers found an atmosphere where they least expected it—clinging to an exoplanet that’s too small, too hot and too old ...

Using the James Webb Space Telescope (JWST), astronomers from the University of Florida and elsewhere have performed infrared ...

Hot, small and old—exoplanet TOI-561 b is just about the worst place to look for alien air. Scientists using JWST found it ...

The beads appear above a swirling hexagonal jet stream at the gas giant's north pole, and could emerge from interactions ...

The Cartwheel lies about 500 million light-years away in Sculptor. Its wagon-wheel shape formed after a violent collision ...

The James Webb Space Telescope has detected unusual dark beads in Saturn's ionosphere and a lopsided star pattern in its ...

A new class of supermassive black holes embedded in a thick gas shell could explain small red dots in images from the James ...

Astronomers might be close to confirming the presence of an Earth-like atmosphere on an exoplanet for the first time, ...