Supermassive serial killers: Astronomers discover how black holes ‘kill off’ neighboring galaxies
Scientists have long suspected that active supermassive black holes can kill their own host galaxies, but new research suggests these cosmic titans are more like serial killers that can extend their murderous rampage across many light-years and destroy neighboring galaxies, too. For scientists, “death” for a galaxy means the curtailing of star formation. Supermassive black