The core of a massive cluster of galaxies appears to be pumping out far more stars than it should. Now researchers at MIT and ...

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

JWST’s observations confirm missing cooling gas in the Phoenix Cluster, explaining its rapid star formation rate.

Like its mythological namesake, the Phoenix Cluster burns with blisteringly hot gas, which cools to birth stars. The James ...

Most massive galaxies have black holes at their cores that emit energetic particles, heating the galaxy’s gas and dust.

A galaxy cluster once thought to be “dead” is unexpectedly forming stars at an astonishing rate, challenging established ...