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This kind of stuff is really awe-inspiring. I have a couple of questions for anyone who is knowledgeable on the subject:

1. Looking at the light from the tiny red-shifted galaxies that are ~13 billion years old... would the Milky Way appear the same to an observer ~13 billion ly from us?

2. What is the cause of the star pointed artifacts (specifically, having 6 major "points") for particularly bright objects? If you zoom in closely on any one of the points, you can almost make out a hex grid, as if the shape of the telescope's mirrors is the cause. Is that correct?



1. Yes pretty much.

2. Yes the artifact shape is related to the mirror shape, and the support arms which block some light. this is called a Diffraction spike. There are a bunch of fake web telescope image videos on YouTube with 4pointed diffraction spikes so you can tell they are taken from a different telescope.

https://en.wikipedia.org/wiki/Diffraction_spike


on 1., I'm not sure but I'd guess so, yes.

on 2., you are seeing Diffraction Spikes[0] which are artefacts of the telescope's design.

[0]: https://en.wikipedia.org/wiki/Diffraction_spike


The points are caused by the support arms of the secondary mirror.




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