https://www.youtube.com/watch?v=rniGXy-jtg0 - Strange signals from space - - Long ago and far away, a duo of dancing supermassive black holes appear to be spiraling in towards each other, eventually doomed to collide inside a stupendous, almost unimaginable, cosmic smash-up. Dancing at night, the strange pair will merge a mere 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 "co-evolve". Theory predicts that as galaxies collide and in the end merge, growing more and more massive because of this, so too do their hearts of darkness. In the January 7, 2015 issue of the journal Nature, a team of astronomers report over a weird repeating light signal from a distant quasar that they say is probably caused by a duo of dancing supermassive black holes within the last act of a merger--a thing that is predicted from theory but which has never been seen before! A quasar is definitely a brilliant, luminous object that out-dazzles all of the stars in its host galaxy combined, and is also visible from over the entire Universe!