Big Bang. Conceptual computer artwork of a man running towards a glow of light. This, along with the mathematical formulae, can represent research into the origin of the universe. As astronomers probe the depths of space, and particle physicists probe the structure of matter, science is moving the knowledge of the beginnings of the universe closer and closer to the origin point known as the Big Bang. This is when all the matter and energy in the universe expanded from an infinitely dense point. Some of the cosmological theories already give the origin of the universe as a random quantum event. The image could also represent the general use of science to explain the world.