Big-Bang: something exploted creating everything in the universe.
Big Crunch: the universe was all compacted..
3rd one: (unknown name) everything always existed
4th one: God created the universe.
I personally dont think god created it, i think it doesnt make sense, i rather think it always existed, how about you guys?
I did Astronomy last year at university and the Big Bang is by far the most likely explaination for the creation of the universe. One piece of evidence that backs this up is the fact that the galaxy's are moving away from each other from a central point, which is where the Big Bang occured.