Tell me something, how is it that when the astronomers focus their telescope to 14 or 15 billion teasr ago, they are sure they’re not seeing the same galaxies which they saw when they focused at 4 billion years ago?
The equipment gives a good indication of the red shift of the spectrum. It is very obvious when you look at a spectrum of the galaxy.
The apparent size of the galaxies are also smaller because they are farther away. Hahahhaha