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187 The Big Bang in Eras
To look at the development of the Universe through the Big Bang, astronomers have divided the development into steps or eras . These eras are our best scientific match to the data we currently have; they seem scientifically sensible. New data is being used to revise and heighten our understanding of these eras.
The generally accepted Big Bang Eras include:
Grand Unification Theory (GUT)
A summary of the Big Bang events occurred in this order:
Big Bang beginning – a bright and hot event →
Planck Era ; initial energy →
Elementary Particles – photons create particles and antiparticles →
Inflation of the Universe →
Four Forces become distinct (strong, weak, electromagnetic, and gravity) →
Protons, Neutrons, Electrons, and Neutrinos formed →