Quasars are ‘cosmic signposts’ pointing to rare pairs of supermassive black holes
Quasars, the brightest objects in the universe, can serve as cosmic signposts that lead astronomers to pairs of supermassive black holes. While scientists are aware that supermassive black holes with masses of millions or even billions of times the sun lurk at the center of all large galaxies, detecting binary pairings of these cosmic titans… Read More »