... Behemoth black hole found in an unlikely place . Gravitational wave search provides insights into galaxy evolution and mergers . ... black holes . ... Supercomputer black hole collisions make fake gravitational waves . ... Astronomers hope to detect gravity waves emitted during black-hole mergers. ... Simulating the merger of black holes is no small scientific feat. ... Recent observations suggest the black holes will merge into one, radiating a cosmic earthquake of gravitational waves. ...