Merging Waltz: Caltech finds two supermassive black holes se

The object in space that showed evidence of the future collision is called a quasar. Quasars are galaxies' active cores, where a supermassive black hole sucks material from a disk that surrounds it. The supermassive black hole in some quasars...

Related Keywords

, Tony Readhead , Astrophysical Journal Letters , Robinson Professor ,