Supermassive Black Hole Halts Star Formation in Ancient Galaxy

The JWST reveals a supermassive black hole in galaxy GS-10578 expelling gas, preventing new star formation.

The galaxy GS-10578, observed by the JWST, has stopped forming new stars due to the actions of its supermassive black hole.
The black hole expels dense, neutral gas at high velocities, effectively cutting off the galaxy's star-forming material.
This phenomenon shows that black holes can kill their host galaxies by ejecting star-forming gas rather than consuming it.
GS-10578 reached a mass similar to the Milky Way's unusually fast, but its star formation ceased about 400 million years ago.
The findings provide direct evidence of AGN feedback quenching star formation, challenging previous models of galactic evolution.