The Phoenix Cluster's central galaxy is about 5.8 billion light-years away and should be mostly done with star formation.

Like its mythological namesake, the Phoenix Cluster burns with blisteringly hot gas, which cools to birth stars. The James Webb Space Telescope has now learned how this galaxy cluster does it.

This breakthrough builds on more than a decade of research using NASA’s Chandra X-ray Observatory and Hubble Space Telescope, along with several powerful ground-based observatories.

For the first time, researchers have successfully measured the quantum state of electrons ejected from atoms that have ...

"We described them as 'never growing up' because they have maintained their primordial disk long after the expected time frame for primordial disks to have dissipated." ...