Big Bang

Olber's paradox says that if the cosmos is infinite it could hold an infinite number of stars that according to classical physics must exist in order to maintain a static universe. This because if there were a finite number of stars they would have collapsed in on themselves long ago. The only way for such a thing to be avoided in newtonian cosmology is to assume another gravity source on the other side of the first pulling it in the opposite direction. But that star too would require a gravity source on the other side of it. And likewise that one, and the next and so on as any finite amount of stars will ultimately come to together. The farther back you go space increases so there would be more stars giving off more light so this pheomena can not be explained away by saying the light from distance stars fade over distance. S, if the newtonian theory of gravity is correct and the universe is static the night sky must be filled with light from those stars spreading out in all dierections making the night sky white since stars are scattered in all directions. Since the night sky is black it cannot be static and if it is not static it can only be contracting which means the stars were made separately in the far distant pass which is unlikely or it is expanding which means they were all creates together. If that is true then all the matter in the universe did come from a point-like sigularity and the big bang theory is true.

Thread copied to the Big Bang thread in the Big Bang and Cosmology forum, this copy of the thread has been closed.