A U.S. - British team has found a closely orbiting pair of twin stars in the Orion Nebula, where one star is hundreds of thousands of years older than the other. (sciencemag.org)
«We were looking for orbiting pairs of supermassive black holes, with one offset from the center of a galaxy, as telltale evidence of a previous galaxy merger,» said James Condon, of the National Radio Astronomy Observatory. (public.nrao.edu)