What do cosmologists mean when they say Big Bang? Perhaps not what we think. The Big Bang poster is available here: https://store.dftba.com/products/the-big-bang-poster
There are many descriptions of the big bang out there that are wrong. Anything that says the universe exploded from an infinitely small, dense and hot point, known as a big bang singularity, are out of date, but I’ve seen this description in many places on the internet and diagrams. I’ve even been guilty of saying this too! But I’ve recently updated my understanding, so here is what cosmologists actually mean when they say big bang.
Special thanks to Katie Mack for some cosmology help: https://twitter.com/AstroKatie
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