Astronomers spot signs of supermassive black hole mergers

New research has found evidence for a large number of double supermassive black holes, likely precursors of gigantic black hole merging events. This confirms the current understanding of cosmological evolution — that galaxies and their associated black holes merge over time, forming bigger and bigger galaxies and black holes. https://www.sciencedaily.com/releases/2018/10/181024083357.htm