BLSinSC: Hubble can’t focus on such objects that close. The closest objects it can generally observe are objects from from Mars outward.

Oh there’s the dark matter, see the trailing edges of stars as they’re flung into deep space? That’s the dark matter, still traveling in the same direction having too much mass to slow down to collide…
Is this what happens when dark matter collides? Nothing? Because we can’t see it?
I was hoping that the addition of three galaxies colliding times that of the dark matter would cause such a severe increase in gravity that the entire area would be red shifted due to time and space dilation…. Oh well, time to rework the theory.
I know! (I have a guess), maybe dark matter is diamagnetic? That photons, with the negative charge, are accelerated into the blue spectrum?
That means that the red galaxies don’t have dark matter and that’s why they’re irregular… Not enough gravity holding them together!
See? I can pretend to be an astrophysicist too!

Since it is stable in the model, they must have figured out how to include dark matter in the model.

Just under … 700 million light years away.
I was worried there for a moment, even checked my “go bag” to be certain I loaded a tooth brush.

On the serious note, truly amazing and beautiful.