The Big Bang Theory And The Creation Of The Universe

The Big Bang

Nothing that is known to be real would exist right now if the universe had not expanded, starting from a big bang, some billion years ago. The Big Bang theory can actually be thought of as a combination of mathematical models that best explain the creation of the universe. From a mathematical standpoint, Einstein’s general theory of relativity and our understanding of the fundamental particles are the basis of the Big Bang theory. In 1965, scientists found evidence that the universe expanded when they discovered cosmic microwave background radiation, which is electromagnetic radiation that is thought to be left over from the Big Bang. Since that discovery, the Big Bang has been used to explain almost all of cosmology.

The universe seems to be expanding, but what exactly does that mean? In general, objects expand into the space that surrounds them. But how can the universe be doing that if it has no space to expand into? It is understood that the expansion of the universe is similar to an inflating balloon. For example, imagine galaxies are on the surface of the balloon. The galaxies themselves are not moving, but the distance between them increases as the balloon expands. Similarly, astronomers have noticed that the distance between us and

Nasa’s goal is to determine whether the universe will continue to expand forever, or if the process will reverse and everything will combine into one super dense object. Immediately after the Big Bang, the universe was filled with neutrons, protons, electrons, and photons. As the universe cooled, neutrons decayed into electrons and protons or combined with protons. Free electrons caused photons to scatter before eventually combining with nuclei and forming neutral atoms. These scattered photons, “the afterglow of the Big Bang known as cosmic background radiation,”2 are still visible