A pair of supermassive black holes caught sharing a meal for the first time
It has been known for about a decade that the Galaxy 2MASX J21240027+340911 has an active core. At its core, a supermassive black hole was feeding on interstellar material, gas or dust, that came too close. Recently, astronomers discovered a repeating signal from this object, hinting at more complexity: it’s not one but two supermassive … Read more