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3wdfghu87
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Fast Radio Bursts
Strange signals from space - Long far and ago away, a duo of dancing supermassive black holes look like spiraling in towards each other, eventually doomed to collide within 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 a lot more massive as a result, so too do their hearts of darkness. Inside the January 7, 2015 issue of the journal Nature, a team of astronomers report on a weird repeating light signal from the distant quasar that they say is most likely caused by a duo of dancing supermassive black holes within the last act of a merger--a thing that is predicted from theory but that has never been seen before! A quasar is an extremely brilliant, luminous object that out-dazzles each of the stars in the host galaxy combined, and is also visible from across the entire Universe!




 
 
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