Did the Big Bang happen at a point?

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2021-09-02 07:00:07

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TV documentaries invariably show the Big Bang as an exploding ball of fire expanding outwards. Did the Big Bang really explode outwards from a point like this? If not, what did happen?

The simple answer is that no, the Big Bang did not happen at a point. Instead, it happened everywhere in the universe at the same time. Consequences of this include:

The universe doesn't have a centre: the Big Bang didn't happen at a point so there is no central point in the universe that it is expanding from.