Even at the center of our own galaxy, astronomers have spotted such a black hole, dubbed Sagittarius A*. And yet, it was predicted that such escapes should occur!”“This is the only black hole that has been found far away from its former home,” he added. Alternatively, the black hole smashed into a binary black hole system, causing it to become unstable, the result of a “three-body interaction,” according to van Dokkum. The team believes this particular runaway supermassive black hole was more likely to have been ejected by smashing into a single black hole. “So black hole binaries should form pretty regularly.”“What we don’t know is how quickly these binaries merge, if at all, and how often the resulting kick removes a black hole,” he added.