After over 20 years of planning and delays, the most powerful telescope of all time officially went into operation. Now, one ...

"We pushed our detection limit down to the brown dwarfs of the cluster, which are the smallest stars that can form!" ...

The teams behind two potential new space telescopes have embarked on their final design studies as they go head-to-head to ...

The James Webb Space Telescope (JWST) shows off its infrared capabilities once again in new imaging of the well-known ...

"Maybe we didn't understand the universe as well as we thought," said astrophysicist Justus Gibson of CU Boulder.

Peculiar James Webb Space Telescope observations seem to show gargantuan black holes in the earliest moments of the universe. New research may explain how they formed, thanks to primordial "seeds".

The James Webb Space Telescope just captured a gorgeous image of the Sombrero galaxy. This cluster now looks more like an ...

The infrared-light image captured by the JWST's MIRI (Mid-Infrared Instrument) reveals the galaxy in a totally different way ...

Brian Greene (Cosmic String Theory) and Astrophysicist Ethan Siegel have collaborated on a National Geographic coffee-table ...

The James Webb Space Telescope has captured images of galaxies from a time when the Universe was less than a billion years ...

A new JWST study has revealed the true origins of a luminous quasar that has been duplicated six times as its light "zig-zags ...

The Epoch of Reionization — the universe’s last major transition — may have happened earlier than previously thought.