The big bang theory states: That at one time, everything that is known of our universe was once at a single point before it commenced "The Big Bang". Correct me if I'm wrong but, that means that every single particle in our entire universe could have been seen at some point in time after the big bang. The question: How are we finding new Galaxies, and clusters of galaxies, that we have never seen before, because the light from those galaxies were just getting to us? If the big bang theory is true then, we should have always been able to see every particle at any point in time. They would have just been getting farther away, but the light reflecting off of them would still be visible at a point in time. I will clarify if needed. A reply is much appreciated.