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

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

The James Webb Space Telescope has confirmed the most distant, early galaxy in the known universe. The new contender, MoM-z14 ...

Data from the James Webb Space Telescope was used to create the largest, highest resolution map of dark matter, just ...

The James Webb Space Telescope's Near Infrared Camera (NIRCam) and Mid-Infrared Instrument (MIRI) captures stunning views of ...

A spectacular new image from the James Webb Space Telescope reveals intricate structures inside the Helix Nebula, where a ...

A merger of galaxies and their supermassive black holes in the ZS7 system was spotted by the James Webb Space Telescope. The ...

Scientists are now certain that James Webb will break every such record until the earliest observable light is eventually ...

Using NASA's James Webb Space Telescope, Technion-Israel Institute of Technology researchers measure cosmic rays in far-off ...

Findings allow scientists to learn more about dark matter’s influence on stars, galaxies, and planets ...

Light is the fastest phenomenon in the universe, clocking in at just under 300,000 kilometers per second. The telescopes that observe that light, from radio waves to gamma rays, are built at rather ...

For years, the James Webb Space Telescope has been finding surprises in the early cosmos. Now it has once again pushed the boundary of the observable universe.