Hi Sunil, I am going to see if I get your questions.
Quote:
|
no one can answer this question of "how this universe is horizontally big, and vertically how much it is long".
|
Thats right, because the universe is so big, and it has so much mass it twists and turns unpredictably from the warp of space time, we will never know exactly what it looks like...
Quote:
|
there were mostly two objects in this space before the big bang happened,
|
Well. before the BB there was no space, BB created space as a result of rapid expansion from a singularity.
Also the "sky" as you say is nothing more them the visual part of our atmosphere, with stars that are behind that in the background.
The "blue sky" is caused from the different elements that make up our atmosphere, when the Sun goes Red Giant it is predicted to swallow the first 3 planets, that would certainly end the "blue sky".