I lumped them together because they belong together. Many Christians flatly reject (as they should) evolutionary biology. Why? Because it contradicts Gods Holy Word. And yet, they fully embrace evolutionary cosmology, which also contradicts Gods Holy Word.
The Genesis account that convinces them that we did not evolve, is somehow insufficient to convince them that the universe did not explode out of nothingness into what is commonly referred to as the universe. The Big Bang, the expanding universe (you seem to prefer that to infinite space), heliocentrism, and the globular earth idea, all have their roots in Evolutionary Cosmology.
I couldn't care less what scientists say, it was science which gave us the atom bomb, evolution, transhumanism, CERN, vaccine poison, TV programming, sex changes and Cell phones, etc.
I'm not here to argue flat earth, and for all the reasons you mentioned. But this is a thread about aliens, an idea that the average person would never even consider, had they not been previously subjected to a life long satanic disinfo campaign to convince them that they were rocketing through space on a spinning ball.