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Astronomers Witness Rapid Black Hole Shutdown in Distant Galaxy episode artwork

EPISODE · Apr 5, 2026 · 34 MIN

Astronomers Witness Rapid Black Hole Shutdown in Distant Galaxy

from Bedtime Astronomy · host Synthetic Universe

Astronomers have observed a distant galaxy dimming to just 5% of its original brightness in only two decades. The cause: a sudden drop in gas feeding its central supermassive black hole.This discovery shows that active galactic nuclei can evolve on human timescales, challenging existing models and reshaping our understanding of black hole behavior.Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs.This episode includes AI-generated content.

What this episode covers

Astronomers have observed a distant galaxy dimming to just 5% of its original brightness in only two decades. The cause: a sudden drop in gas feeding its central supermassive black hole.This discovery shows that active galactic nuclei can evolve on human timescales, challenging existing models and reshaping our understanding of black hole behavior.Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs.This episode includes AI-generated content.

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Astronomers Witness Rapid Black Hole Shutdown in Distant Galaxy

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This episode is 34 minutes long.

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This episode was published on April 5, 2026.

What is this episode about?

Astronomers have observed a distant galaxy dimming to just 5% of its original brightness in only two decades. The cause: a sudden drop in gas feeding its central supermassive black hole.This discovery shows that active galactic nuclei can evolve on...

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