it looks to me like these verses in the quran are talking about seperating the sky ('the blue bit'), from the (flat and geocentric) earth, raising it up, and placing air in between.
It reminds of a guy in Asterix books who is scared of the sky falling on his head. After reading the following in the quran, I am more certain:
52: 44 Were they to see a piece of the sky falling (on them), they would (only) say: "Clouds gathered in heaps!"
34:9 If We wished, We could cause the earth to swallow them up, or cause a piece of the sky to fall upon them.