jwst

Astronomers using the James Webb Space Telescope have spotted what may be the smallest known brown dwarf, a "failed star" that's only three or four times larger than Jupiter.

The early galaxy AzTECC71 is so far away it keeps disappearing from telescope observations. A new study by the James Webb Space Telescope finally pins it down.

Peering deep into 'The Brick,' a dark, chaotic gas cloud at the heart of the Milky Way, the James Webb Space Telescope uncovered secrets that could shake up theories of star formation.

A dazzling new James Webb telescope image of the region near the Milky Way's central black hole reveals thousands of newborn stars among the "most extreme cosmic environment" in the galaxy.

The James Webb and Hubble space telescopes have combined forces to image a cluster of galaxies 4.3 billion light-years away in one of the most colorful pictures of the universe ever taken.

The James Webb Space Telescope has discovered a cosmic 'peanut' and 'fluff ball' that happen to be two of the four oldest galaxies in the known universe.

The James Webb Space Telescope has discovered a massive chain of 20 galaxies in the early universe, raising questions about the formation of the largest structures in the cosmos.

Clouds of silicate sand exist high in exoplanet WASP-107b's atmosphere, new James Webb Space Telescope observations reveal.

The James Webb Space Telescope has revealed the most detailed image so far of the Crab Nebula, a gorgeous supernova remnant of a star that exploded 1,000 years ago.

A Milky Way doppleganger discovered in the early universe suggests some key physical ingredient is missing from cosmological models.