Big+Bang+Theory-+Porath


 * __The Big Bang Theory by Allyson Porath__**

This was the very beginning of the Universe and happened approximately 13.7 billion years ago ([|www.big-bang-theory]). "The big bang theory is the theory that the universe started from a single point, and has been expanding ever since" ([]). After the bang, the 'objects' started to cool and expand to create the Universe we know now. The Universe is still expanding and cooling to this day.

What is believed to happen is that the Universe was basically a big glob of neutrons, photons, protons, electrons, and anti-electrons. Once the bang occured, everything started to expand and cool. Once certain temperatures were met, neutrons would decay and create more protons and electrons that made deuterium or an isotope of hydrogen. The Universe kept cooling and the electrons combined with nuclei to make neutral atoms. This caused the Universe to become transparent ([]).

Picture from [|www.eng.fsu.edu]