A supermassive black hole lurking at the center of M87, a supergiant galaxy 55 million light-years from Earth, is acting far more strangely than anticipated. Since 2017, astronomers from the Event Horizon Telescope (EHT) — an international collaboration combining a global network of radio telescopes — have closely watched the enormous gaping maw, resulting in the first-ever images of a black hole ever captured by humankind. Now, by comparing observations from 2017, 2018, and 2021, scientists made a surprising discovery about how the magnetic fields near the black hole, dubbed M87*, change over time. The finding “challenges our models and shows there’s much we still don’t understand near the event horizon,” he added. More on EHT: Astronomers Were Watching a Black Hole When It Suddenly Exploded With Gamma Rays