It is interesting that, if a planet is in the right place, add water, and stand back, and intelligent life evolves. OK, takes a long time to happen, although 'time' is very much a human concept. I wonder if this would happen on any suitably-placed planet, and I suspect it would.
Although, as the Buddha stated, speculating about the beginning of things is not conducive to the path. It is quite possible that in the end, we will discover that the Universe goes through cycles of expansion and contraction in a never-ending process. That is pretty much how the ancient Indian civilization saw it also. The point of the teaching is the cause of dukkha and the ending of it.