Big Bang

Also known as BigBang, Big-Bang, beginning of time, Big Bang theory

hypothetical begin of the Universe through expansion out of an infinitely small and infinitely dense state

AI overview

The Big Bang is the scientific theory that the universe began as an infinitely small and infinitely dense point and has been expanding ever since. It matters because it's our best current understanding of how the universe originated and continues to evolve.

AI-generated from the Wikipedia summary — may contain errors.

~40 min read

Encyclopedic overview

Timeline of the expansion of the universe, where space is represented schematically at each time by circular sections. On the left, the dramatic expansion of inflation; at the center, the expansion accelerates (artist's concept; neither time nor size are to scale).

Expansion · Future

Excerpted from Wikipedia’s “Big Bang” article, available under the CC BY-SA 4.0 licence.