Scientists Discover Fearsome Wind That Destroys Entire Galaxies

Key Points:

• Astronomers using the James Webb Space Telescope observed a galaxy cluster, CRISTAL-02, from one billion years after the Big Bang, revealing powerful galactic winds ejecting cold gas and halting star formation.
• These winds, driven by intense bursts of star formation and subsequent supernova explosions during galaxy mergers, could cause galaxies to "die" rapidly, in less than 50 million years.
• The findings offer a simpler explanation for the existence of many "dead" galaxies in the early universe, challenging previous theories that only supermassive black holes could generate such destructive winds.
• The study suggests that frequent galaxy collisions in the denser early universe triggered rapid star formation and powerful winds, leading to premature galaxy deaths on a widespread scale.
• This research provides new insight into galaxy evolution, indicating that early massive galaxies often interacted and merged, resulting in the observed abundance of inactive galaxies at a young cosmic age.