Infinite questions about a universe created by God, from nothing at all

We speak of a ‘Big Bang’ but don’t mean a ‘bang’ like an explosion, which has a centre and a shock wave that moves spherically out into air from the explosion.

Instead, the ‘Big Bang’ happened everywhere in the Universe at once, with no centre. Shortly after the ‘Big Bang’, density and pressure of the Entire Universe were the same everywhere. So, pressure difference could not possibly create an explosion. The ‘Big Bang’ wasn’t a bang at all.

About 13.7 billion years ago, the Entire Universe increased by 10^30 (a million trillion trillion) times, in less than a second. We call this remarkable phenomenon, the ‘Big Bang.’

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Read what the Early Church Fathers said about this