Is There a Limit to the Size of a Galaxie?

Becky: Is there a limit to the size of a galaxy? Also, why do we have a bunch of galaxies instead of one huge galaxy if everything was so close together after the big bang? Alex S: I'll start with that one first. Becky: Yeah. Other than they're weird. Okay.Alex S: The black hole can put energy back into a galaxy and stop it forming more stars. That's like pushing it for how big you can you can really get in terms of a galaxy. We actually do see this big drop off of the amount of galaxies at very large sizes due to that process.