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

> **Newsylist Open Intelligence Dossier** · First detected: 2026-08-23 20:29 UTC · Category: Science · Sources: 4 · Current Velocity: 2

## Multi-Source Evidence Table
| Source Outlet | Headline | Published (UTC) | Verification URL |
|---|---|---|---|
| Phys.org | Dying radio galaxies suggest a shorter, more dynamic afterlife for black hole jets | 2026-08-21 21:00 | [Source Link](https://news.google.com/rss/articles/CBMie0FVX3lxTE9rRDZFbFY0QlpTVFBtWHJQUXZ3ek1MN2tWcUt0T25jS2MtSXhIcGcyb3BUOWplOFphTnQ3ckxIWGVMRGYxV3l3RllyVGQxd2VJd19DWWhRMC00cEdmYVFERmQ0b2tOM3ZxWmtBSnNrZ2hETUt0MWZHbGZSVQ?oc=5) |
| EurekAlert! | Mapping the Ages of Dying Radio Galaxies (IMAGE) | 2026-08-21 21:00 | [Source Link](https://news.google.com/rss/articles/CBMiWEFVX3lxTE1mVU1jcUpYVk5BYnBtNGZpYVA0eWkyYVBNTnhsM01sdTRTR1QyOW1YdFV6NkEtQ0VQcW1TTVBwUEd1ZkdpNTFUajg4dG5ERjFhcGFBRnBUZ0M?oc=5) |
| The Brighter Side of News | Twelve fading galaxies expose a missing stage in the life of black hole jets | 2026-08-21 21:00 | [Source Link](https://news.google.com/rss/articles/CBMitgFBVV95cUxONkJDXzRWVGh2cGFzU1N3VUVEd2kwSjZsNWY5VElwbl9kNFBBSHo1RmVJejI3Z04zODFxOGM5QUctQl9YZFV1Y0o0dElLZ0plZl82aFEwM2lJREMwZ0c1TzM1b2c0U0FMTy1ha2h4LXZYQjV4SktfTk1jaTR2X3hsaDMzandyX3BTZXVxZGRSbDBFalNlWGdEb0V2ekE1U0ZKenZZYTZOQlQ0TUpaNlVEV09zRUpQdw?oc=5) |
| Space | What happens when a galaxy's supermassive black hole turns off? These dying radio galaxies could show us | 2026-08-21 21:00 | [Source Link](https://news.google.com/rss/articles/CBMi3wFBVV95cUxPWGZ6V19CUkZlSG1oUHlPdm40Vmx3eUU3RFd2dlVlSmFfTVFaNjNSOVhIV25lblhUbm91SUgtc1NrcUtPYm9hWFlnVnBXVmxaTlR0d1hraVpYY0R3cGJ1Z2VHdVF0RU80dDZPSWZVcjVFdzhRVXU1SGJvaUpIOU5WRmRSVXFqazlJbHNoMnZwVi14eDVkenJjcFBRS0hYY0tVYkdYWjJxZ2NhVWV3b0NpeVpkY3NuWExIeUNUNEFTeV9EcEhOSlIxdnRPdmZpeFZSMnJoVDlINWhUdmFqX3I0?oc=5) |

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*Canonical Source: https://www.newsylist.com/trend/2026-08-23/what-happens-when-a-galaxy-s-supermassive-black-hole-turns-off-these-dying*
*Synthesized by Newsylist Open Intelligence Engine under E-E-A-T journalistic standards.*