Most of us have an awareness of the basic concept of the Big Bang Theory from a very young age. I am not referring to the CBS show, but I suppose children learn about that fairly young nowadays as well.
Anyway, although I’ve always had a basic understanding of what the Big Bang Theory entails, I didn’t realize how nuanced the associated timeline is until recently.
Last weekend, I was had the pleasure of visiting the Adler Planetarium in Chicago and went to its exhibit called “The Universe: A Walk Through Space and Time.” I was shocked to see that scientists have an understanding of what happened in the moments following the Big Bang, pinned down to minuscule fractions of a second.
This chart from the University of Northern Iowa explains these events very well. Some interesting ones to consider are the birth of gravity at 10^-35 seconds after the Big Bang and full proton and neutron formation at 10^-7 seconds after the Big Bang. It is absolutely incredible to me that scientists are able to understand these events with such chronological specificity!