origin of the universe The scientists try to explain the origin of the Universe with diverse theories, supported in observations and mathematical calculations that are coherent. The most accepted are the Big Bang and the Inflation theory, which complement each other. Big Bang Theory The theory of the Big Bang or big explosion, supposes that, between 13,700 and 13,900 million years ago, all the matter of the Universe was concentrated in an extraordinarily small area of space, a single point, and exploded. Matter was propelled with great energy in all directions. This theory about the origin of the Universe is based on rigorous observations and is mathematically correct from an instant after the explosion, but does not have an admissible explanation for the zero moment of the origin of the Universe, called "singularity". The clashes that inevitably occurred and a certain disorder caused the matter to be grouped and concentrated more in some places of space,...