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What lit up the universe? Black holes may have punctured darkened galaxies, allowing light to escape. Researchers have a new explanation for how the universe changed from darkness to light. They propose that black holes within galaxies produce winds strong enough to fling out matter that punctures holes in galaxies, allowing light to escape. Source 7s.
Well that's a poorly written intro. They're talking about the dust clouds that would have formed around the exterior of galaxies in the early eons of the universe's formation. They'd have let little light from said galaxies escape.
What I'm not sure of is is why they think the stellar equivalent of shooting a gun at a barrier was required to get rid of the clouds. I would think shifts in gravitational fields would solve that particular problem over time.
I am not sure the Universe needed any light after the big bang if you accept this theory. Once the Big Bang happened you had lots of light and stars plus other matter as the new universe has been spreading outward since then.
Is it not possible that as the universe expanded the clouds thinned out, thus becoming more transparent? I mean, while they were concentrated in a relatively small area they were too dense for light to escape through but they thinned to the point where light escaped as the area of the universe expanded.
It did have plenty of light Kn, what it is referencing is the (Well supported) theory that at one point in time, an observer within a particular galaxy would only be able to see the stars in their own galaxy. That sky would be a lot darker.
And yeah, Abn, I don't know why those clouds are being assumed to be eternally static without violent dispersal.
I have met some very smart people and talked to them many times about this and that subject. While they are very knowledgeable on certain things they are not good at other things. I am needing to do more research on this subject, as space fascinates me, and see what I can figure out.