Space.com · Space · 2026-08-21
What happens when a galaxy's supermassive black hole turns off? These dying radio galaxies could show us
Astronomers have discovered a hitherto unseen population of galaxies with fading radio lobes, revealing what happens to these vast outflows when their black hole engines stall. Astronomers have discovered a hitherto unknown population of galaxies with fading radio jets. What happens when a galaxy's supermassive black hole turns off? These dying radio galaxies could show us
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