The Universe

If we were to look at the Universe one second after the Big Bang, what we would see is a 10-billion degree sea of neutrons, protons, electrons, anti-electrons (positrons), photons, and neutrinos as a hot and infinite point. (A Spacetime Odyssey Earth, National Geographic, 2014). Then, as time went on, the Universe continued to cool, it would eventually reach the temperature where electrons combined with nuclei to form neutral atoms.