That those are all galaxies is simply not fully comprehensible to me, which is part of the attraction of such otherwise “useless” images.
It’s not as if any of it is within reach or will be within a foreseeable future. To conquer space-time we probably couldn’t be corporeal.
Maybe that’s what’s to learn in the Millennium.
As a spirit-being we will be able to cross the cosmos in the blink of an eye......................
In trying to learn more about our universe without being able to actually explore it, we invent bigger and better means of doing such. It’s frustrating, knowing that we can look, but not touch. We’re limited by the vast distances, but our telescopes will show us much. We just have to learn to understand what we are seeing.
Before it was the stars in the night sky.
Now it’s the galaxies. Stars arguably being “old hat” now.
Of course most of the galaxies getting all the attention are impossible to see without massive telescopes, so most of us have got to take their word for it!
The switcheroo from stars to galaxies happened quickly and very recently.