Monster black hole

SciScoop member “barakn” commented on a recent posting about the massive black hole that astronomers claim to have found. As ever, there are two sides to a story and, as barakn points out, conflicting research has now been published that suggests it would have taken three galaxies colliding to eject such a large black hole, so it is perhaps more likely that what at first looked like such an astronomical object is in fact a common or garden quasar…