Taken from http://http://ssscott.tripod.com/BigBang.html [Broken] Einstein's Theory of Special Relativity says that an object travelling at the speed of light will go into the future, and an object travelling at speeds more than the speed of light will go back into the past. Is this correct? Why? Don't ask me, but I guess that must be correct since it is accepted by the scientific community, so I'll have to take it for granted. Now, according to the theory of the Big-bang, the particles that were blasted by the explosion should have travelled back in time. And if they have maintained the speed (which was greater than c - the speed of light - ~300 000 km/s) long enough, they should have travelled way back, before the Big-bang. Now, you could say that the only thing that was "undergoing a rate of expansion many times the speed of light" was the dimension of space. But let me give you this good example: Say we have a big rubber band with people on it. Stretch the rubber band and the people will recede from each other. Thus, if the dimension of space was expanding, particles contained by this dimension must have expanded also. If those particles travelled somewhere, sometime before the Big-bang, where and when did they end up? Since the dimensions of time and space started to exist at t=0, the Big-bang. When I say "particles" I refer to the Universe as has ever been, in a form or another. We, even now, don't know the speed at which galaxies are receding from each other, or from their place of origin. We only know their speed of recession relative to our solar system (or Earth): which is ~ +72 km/h per 3.26 light years of recession. Our solar system is moving too. So the speeds of recessing galaxies are surely greater. My question is: what if the galaxies' speeds, relative to an inert point in space, are still greater than c? This would mean that we are still travelling back in time... 2. The Big-bang Theory says that prior to the great explosion, there was only one minuscule "primordial atom" or "nucleus". It also says that at the time of the explosion the dimensions of time and space were created. The problem is: were did the primordial atom reside in? Or was it that the only space available was the one occupied by the primordial atom? 3. I know that scientists haven't decided yet if the Universe is infinite or not. I have an argument, but it is supported by the Big-bang theory, so it's pretty weak: An infinite amount of matter cannot have a shape. To figure out it's shape, one must reach it's borders, but it is impossible since the amount is infinite. The standard model Big-bang suggests that prior to the explosion, the Universe was compressed into a minuscule atom. We have our shape, thus the Universe is finite. 4. How did Friedmann and Lamaitre find out that the dimension of space is expanding? I mean, we cannot measure it's expansion, because along with the expansion of space, we have the expansion of its contents. So this means proportions are kept. Even reaching the margins of space, one cannot observe that it is expanding, because proportions are kept, and there is no exterior point to the Universe, to which we can compare distances. Please share your opinions and arguments/counter-arguments about this. P.S. I don't have thorough knowledge of the Theory of Relativity and I'm not sure that this is the right forum to post this thread in.