James Webb Space Telescope
JWST Sees So Many Galaxies, and It's Just Getting Started
Hubble Space Telescope's Deep Field revealed thousands of galaxies in a seemingly empty spot in the sky. Now, the James…
“The Universe Breakers”: Six Galaxies That are Too Big, Too Early
In the first data taken last summer with the Near Infrared Camera (NIRCam) on the new James Webb Space Telescope,…
Galaxies Aren’t Just Stars. They’re Intricate Networks of Gas and Dust
Astronomers have studied the star formation process for decades. As we get more and more capable telescopes, the intricate details…
Webb Sees Three Galaxy Clusters Coming Together to Form a Megacluster
The latest JWST deep-field image provides a breathtaking view of Pandora's Cluster, which was previously imaged by Hubble.
JWST Unexpectedly Finds a Small Asteroid During ‘Failed’ Observations
While astronomers and engineers were trying to calibrate one of the James Webb Space Telescope’s instruments last summer, they serendipitously…
Good News! Webb is Fully Operational Again
The James Webb Space Telescope is back to full science operations. One of the telescope’s instruments, the Near Infrared Imager…
Webb NIRISS Instrument has Gone Offline
The JWST is having a problem. One of its instruments, the Near Infrared Imager and Slitless Spectrograph (NIRISS,) has gone…
By Blocking the Light From a Star, Webb Reveals the Dusty Disk Surrounding It
AU Microscopii is a small red dwarf star about 32 light-years away. It's far too dim for the unaided human…
JWST Pioneer Passes Along Advice for Future Space Telescope Builders
After a quarter-century of development, NASA's James Webb Space Telescope is a smashing success. But senior project scientist John Mather,…
The Webb Has Confirmed its First Exoplanet, and it’s the Same Size as Earth.
The James Webb Space Telescope is the most powerful telescope ever launched into space. That power has led to a…