Big Bang
Big Bang, today we know that the whole universe came into being when we had a Big Bang in past, that is a good hypothesis but it has a problem.
If space is expanding at accelerated rate then something has to push the galaxies away at faster and faster speed, that gives rise to idea of dark energy. This does solve the problem but as we have no clue about what is dark energy we simply assume its there. If the same energy existed when Big Bang happened it simply cannot let atoms form as it will be much more concentrated and pushing everything apart.
That is the first problem that we cannot have atoms, planets, solar system and galaxies if we have dark energy as it simply doesn't act on other things but only galaxies.
Other problem is even more complex, if we are accelerating at away from other galaxies at faster and faster rates, it would mean that we are moving toward a void, this means universe has to be created at certain time, if that is the case something has to create it, now we have no idea but we could assume God made the universe but that is like tagging everything to God if we don't understand something, "God of gaps".
String theory has great explanation for creation of universe that is two membranes colliding with each other forming our universe, its sounds worse than idea of God actually when we don't know the process and we assume, membranes, collisions and formation without the actual process. These are 3 different assumptions that don't make logical sense. (But some people love it for some unknown reason).
Assuming Big Bang happened and we would have Big Crunch after this, this is sensible because at least we would have constant bangs and crunches all the time but we see universe expanding at an accelerated rate, that doesn't make sense how would Big Crunch happen as for that we have to slow down rather than speeding up.
Thus for people who would think about it, it would make sense that it's not possible to have Big Bang because we don't know what started it.
Does this mean idea about Big Bang is wrong? Or am I saying its wrong?
At least I'm not saying its wrong, I'm just giving a new twist to it. First lets start with the source of Big Bang, where did all the matter came from, the matter came from a very large object, which is very much static, in one part of it we simply sprouted like a fountain.
I personally don't know the size of the main object but when we put this object there everything starts making sense.
The Object is the biggest black hole you could imagine that means we can't see it, so time after time a big sprout would happen and universe like overs would be form, these universes could be larger or smaller than our universe but that is beyond the point, it also may happen that two sprouts would happen in a short time that is like 4-5 billion years and particles (galaxies) from first sprout would go on away for a longer time, this explains the part about big bang but what about big crunch and why do we see things accelerating away from each other?
For that we have to know about about how gravity really works.
http://en.wikipedia.org/wiki/Comet_Shoemaker%E2%80%93Levy_9
When Shoemaker Levy comet was about to hit Jupiter, it broke into many smaller pieces, question is why?
What we can understand is that front of the comet had higher gravitational pull compared to back of it, which ripped it apart and it caused the problem of comet breaking into many pieces.
Now imagine you are on the middle of this comet, sitting right on the middle piece, the pieces have already broken apart but you are alive just for few seconds. You would see in these few seconds that part you are on is moving away from part in front of you and behind you, but you could see Jupiter and that would mean its breaking the comet apart, now imagine you can't see Jupiter and you don't even know it's there. You would see that all parts are moving away from each other and you are traveling through space or you are just static if you have no other reference.
Is this exactly what we see when we see other galaxies?
We are already in a big crunch, moving toward the main black hole faster and faster, we see we are moving slower than galaxies in front of us and faster than galaxies behind us, we are heading toward the end of the universe.
For this explanation that gives total picture of what we see today but it does not have to start new terms that we are unsure about we cannot detect them, yes it does assume the existence of a hyper massive black hole but we can feel its effects.
