EU-funded scientists pitted the results of advanced numerical simulations against observational data in an effort to improve their capability to detect gravitational waves emitted from merging binary black holes.
Einstein's theory of general relativity predicts ripples in space-time generated by pairs of black holes merging. When galaxies merge, the supermassive black holes thought to be at the centre of large galaxies will inevitably meet. They first dance together, then enter a desperate embrace before they merge.
Further details: Gravitational waves - tool to observe black holes