This is a bit more in depth continuation about this incredibly massive galaxy:

To give you some idea of what this means, the Milky Way is just 100,000 light-years in diameter. If our galaxy were to be replaced with this super-giant, it would swallow up both Magellanic clouds, the Andromeda galaxy, the Triangulum galaxy, and almost all the space in between. That is simply staggering.

And this is a brief intro to the video listing 10 amazing facts about these super massive black holes:

Find out what astronomers have been learning when they look deep into the core of giant galaxies. In nearly every one, they are turning up supermassive black holes that are tearing space to shreds, blasting away at their environments, and raging against the relentless force of gravity that created them in the first place.

We hope you enjoy watching it!

thanks to futurism.com for the great info