James Webb Space Telescope Maps Our Universe's Largest Structure in Unprecedented Detail

James Webb Space Telescope maps our universe's largest structure in unprecedented detail

Using the James Webb Space Telescope, astronomers have mapped the "cosmic web" of galaxies, the largest structure in the universe, with unprecedented detail.

JWST resolved a galaxy from 800 million years after the Big Bang while NEO Surveyor — the only NASA mission Congress has required by statute — remains roughly 30 years behind its city-killer catalog deadline, and the gap is a lesson in what makes a proble

Astronomers using the James Webb Space Telescope have achieved remarkable results in observing ultra-faint galaxies from the early universe, detecting light that has traveled for roughly 13 billion years. These observations capture galaxies as they appeared when the universe was less than a billion years old, with chemical signatures consistent with enrichment by the universe’s first generation of stellar objects. Gravitational lensing from fore…

James Webb mapped 164,000 galaxies to chart the cosmic web back a billion years

A team using the James Webb Space Telescope has produced a map of the cosmic web that traces the universe’s hidden scaffolding through 164,000 galaxies. The depth and resolution mean astronomers can now see the web at a time when the universe was only a few hundred million years old, an era that was previously out of reach. For the first time, the gravitational architecture that organizes everything visible can be studied at the epoch when galax…