The Big Bang is the most widely accepted theory among scientists for the origin of the universe. It specifies that the universe began as a very small speck of space filled with incredibly dense matter. Then the universe began expanding at an astounding rate; in a billionth of a trillionth of a second, the newborn universe doubled and redoubled 100 times over, stretching each atom-sized volume to the size of a galaxy. 1 This was the so-called "inflation phase" in which the universe expanded much faster than the speed of light. This cosmology assumes that quantum fluctuations in the early universe led to the distribution of galaxies in the universe.





