Webb Telescope Reveals Black Hole Slowly Starved Giant Galaxy to Death

• Astronomers used James Webb Space Telescope and ALMA to study Pablo's Galaxy (GS-10578), a massive galaxy 11 billion light-years away.
• Contrary to expectations for its size and age, Pablo's Galaxy stopped forming stars about 400 million years ago, appearing dormant.
• ALMA data showed almost no cold gas, the essential raw material for star formation, indicating a slow starvation.
• The galaxy's central supermassive black hole repeatedly expelled gas at high speeds, preventing new stars from forming.
• This process, dubbed 'death by a thousand cuts,' slowly drained the galaxy's star-forming fuel without a violent collision.

Why It Matters: Webb Telescope data shows a black hole slowly starved Pablo's Galaxy, revealing a new way galaxies die.