... Behemoth black hole found in an unlikely place . Gravitational wave search provides insights into galaxy evolution and mergers . ... galaxies . ... black holes . ... Cosmic Adventures . ... Astronomers "weigh" heaviest known black hole in our cosmic neighborhood . ... Astronomers led by Karl Gebhardt from The University of Texas at Austin have measured the most massive known black hole in our cosmic neighborhood by combining data from a giant telescope in Hawaii and a smaller telescope in Texas. ...