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

Astronomers have discovered a hitherto unknown population of galaxies with fading radio jets. Astronomers have discovered a hitherto unseen population of so-called "radio galaxies" with fading "radio lobes." The discovery reveals what happens when the supermassive black hole engines that power these vast, blooming outflows of plasma stall. This discovery increases our understanding of the life cycles of galaxies [1].

Sources

1. space.com · What happens when a galaxy's supermassive black hole turns off? These dying radio galaxies could show us Aug 21, 2026

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