What happens when a galaxy's supermassive black hole turns off? These dying radio galaxies could show us

Astronomers have identified a population of 'dying' radio galaxies where the central supermassive black holes have ceased activity. By studying these fading radio lobes, researchers hope to better understand the life cycles and evolution of galaxies.
Why it matters
This research provides new insights into the long-term behavior of supermassive black holes and the structural evolution of the universe.
Black Holes What happens when a galaxy's supermassive black hole turns off? These dying radio galaxies could show us News By Robert Lea Published 21 August 2026 Astronomers have discovered a hitherto unknown population of galaxies with fading radio jets.
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