This is a pretty damn big galaxy we are talking about with plenty of people in it... not quite as many as their used to be, but still a decent number. (sportsinsights.com)
Bigger galaxies mean bigger black holes and therefore stronger gravitational waves. (sciencedaily.com)
«They are the first to provide compelling observational evidence for these objects being the remnants of bigger galaxies,» says Elena Gallo at the University of Michigan in Ann Arbor. (newscientist.com)