round 13.8 billion years ago, the universe and everything that exists within it erupted from a single, infinitely hot and dense point. This is known as the Big Bang. Our understanding of the universe is divided into the observable universe and the unobservable universe. The word ‘universe’ is often used to describe everything in existence, including all the matter and energy within space.
WHAT’S AT THE EDGE OF THE UNIVERSE?
Feb 16, 2023
2 minutes
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