In 2019, a supermassive black hole in a galaxy 300 million light-years away woke up. Now, it’s puzzling astronomers with an unexpected slowdown in its X-ray bursts.
The post A Black Hole’s Puzzling X-Ray Bursts appeared first on Sky & Telescope.
In 2019, a supermassive black hole in a galaxy 300 million light-years away woke up. Now, it’s puzzling astronomers with an unexpected slowdown in its X-ray bursts.
The post A Black Hole’s Puzzling X-Ray Bursts appeared first on Sky & Telescope.