Hey guys, I've been wondering a lot about this Big Bang Theory, as I think it is terribly constructed. Anyways, I realize that cosmologists have observed that the universe is expanding and even accelerating in it's expansion. However, I don't see how this can be possible with the laws of physics. Since F = (G*m1*m2)/r^2, and every mass exerts a gravitational pull on every other mass, shouldn't galaxies, even if expanding outward, be moving somewhat closer together? Also, what started this expansion, and what is causing the acceleration? Since F = (G*m1*m2)/r^2 and F=MA, shouldn't gravity be slowing down the expansion of the universe? Is it due to dark energy at the border of the universe or the intensity of the initial big bang? What's the Big Crunch, the universe is predicted to eventually come together again? I'm not stupid, I just want to know the common perspective of you guys, as I question both theories.