Bella Boulderstone
answered on 10 Jun 2019:
last edited 10 Jun 2019 11:56 am
Oh man, that’s such a good question that I don’t think anyone really knows the answer to! It’s tricky because we can talk about the tiny, tiny particles that were swirling in a hot wild environment almost immediately afterwards. The moment itself, we don’t know!
Nobody is really sure how the Big Bang happened. All we really know (or at least are pretty sure of) is that it happened, and the Universe started. Before then, there was probably nothing, not even empty space, which is hard to imagine.
We don’t really have an understanding of how the Big Bang happened yet. One interpretation we have is that there was a “singularity”, which is a point with infinite density, in which all of the Universe was condensed, before quantum fluctuations caused it to expand. This means the Big Bang happened everywhere at once, which I still find hard to grasp!
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