zombie stars

Adding a cosmic “Walking Dead” twist to the most morbid of all space objects, scientists have found that some black holes could bring dead “zombie” stars back to life — and then destroy them. Black holes are invisible “objects” in space where the gravity is so strong that it sucks everything into it, even light. All of the black holes that astronomers have found so far are either superbig — as in hundreds of thousands and even billions of times the mass of our sun — or on the smallish side, as in, say, less than 100 times the mass … Read more