The James Webb Space Telescope and the Chandra X-ray Observatory have captured the clearest image yet of a galaxy cluster in the making, seen when the universe was only one billion years old.

"JADES-ID1 is giving us new evidence that the universe was in a huge hurry to grow up." ...

This mash-up of data from the James Webb Space Telescope and the Chandra X-ray Observatory reveals two galaxies mid-collision, with their spiral arms overlapping and bending toward their neighbors' ...

Astronomers used James Webb Space Telescope data to determine the density of the universe's most mysterious "stuff." ...

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Artist's conception of James Webb Space Telescope. Fourth anniversaries aren’t often causes for celebration. But in the case of the James Webb Space Telescope (JWST), which launched on Dec. 25, 2021, ...

"There is a growing chasm between theory and observation related to the early universe, which presents compelling questions ...

Go behind the scenes with the James Webb Space Telescope, the most powerful observatory ever launched, as it reveals secrets ...

A new image from the James Webb Space Telescope by NASA gives a glimpse into a black hole within the Circinus Galaxy. The Circinus Galaxy is 13 million light-years from Earth. NASA said it’s long been ...

The James Webb Space Telescope has delivered new evidence that sheds light on what scientists know about black holes. Launched more than four years ago, the infrared observatory, and successor to the ...