[QUOTE]The detection of a binary black hole supports the idea that black holes grow to enormous masses in the centers of galaxies by merging with other black holes, said Komossa. This is important for understanding how galaxies form and evolve.
Over the course of the next few hundred million years, the two black holes in NGC 6240, which are about 3000 light years apart, will drift toward one another and merge to form an even larger supermassive black hole. Toward the end of this process an enormous burst of gravitational waves will be produced.[/QUOTE:10378348