From the time when we start understanding, we do research and give many possibilities and theories about the Universe but knowing truly what it really always remains a mystery and we die without being able to reveal that mystery. Many generations tried to solve but the Universe is too deep to get to the bottom of it. The most important and accepted theory about the Universe is ‘The Big Bang’ theory. It actually tells us how this universe is born. You see, the Universe originated from a hot, dense, very rapidly expanding state. It was full of matter and radiation, and over time it expanded, cooled, and the expansion rate began to slow. In addition, gravitational imperfections grew into galaxies and clusters of galaxies or shrank into great cosmic voids. Just Imagine when any bomb explodes, it expands covering the vast area compared to its original size but the expansion doesn’t last long. After causing the damage, it disappears completely. So now, why we can’t compare this expans