Quote Originally Posted by ermitonto
two supermassive black holes at the center of each galaxy will spiral into one another, pulling in billions of stars and eventually colliding to form an even bigger black hole. The Earth will either be sucked into the black hole, or hurdled out of its orbit and out of the galaxy as supernovae strip away the atmosphere and boil the oceans off.
This is a new one to me. I had, previously, thought that we revolved around the sun, not a black hole.