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SETI Strange signals from space - Long ago and far away, a duo of dancing supermassive black holes seem to be spiraling in towards each other, eventually doomed to collide in a stupendous, almost unimaginable, cosmic smash-up. Dancing at nighttime, the strange pair will merge only a million years from now, liberating energy equal to 100 million supernova blasts, in which massive stars perish. The dark-hearts of most, if not all, large galaxies in the Universe--including our own Milky Way--contain supermassive black holes with masses equivalent to millions, or even billions, of Suns, and these objects of incredible darkness and their host galaxies appear to evolve together, or "coevolve". Theory predicts that as galaxies collide and ultimately merge, growing increasingly more massive as a result, so too do their hearts of darkness. Within the January 7, 2015 issue in the journal Nature, a team of astronomers report on the weird repeating light signal coming from a distant quasar which they say is most likely the result of a duo of dancing supermassive black holes within the last act of a merger--a thing that is predicted from theory but which includes never been seen before! A quasar is certainly a brilliant, luminous object that out-dazzles all the stars in the host galaxy combined, and it is visible from throughout the entire Universe!