Astronomers Witness a Supermassive Black Hole Roaring to Life
Five years ago, a galaxy 300 million light-years away got a lot brighter in telescopes, radiating ultraviolet, optical, and infrared light out into space. This year, the resurgent galaxy started emitting X-rays, indicating that its initial brightening was really just a warmup.Read more...
![Astronomers Witness a Supermassive Black Hole Roaring to Life](https://i.kinja-img.com/image/upload/c_fill,h_675,pg_1,q_80,w_1200/62e51ca6d82b1f91b2b6d41701b68fe4.gif)
Five years ago, a galaxy 300 million light-years away got a lot brighter in telescopes, radiating ultraviolet, optical, and infrared light out into space. This year, the resurgent galaxy started emitting X-rays, indicating that its initial brightening was really just a warmup.
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