An illustration of our cosmic history, from the Big Bang until the present, within the context of the expanding Universe. The hot Big Bang was preceded by a state of cosmic inflation, but the idea that all of it must be preceded by a singularity is woefully out of date. (NASA / WMAP SCIENCE TEAM)

There Was No Big Bang Singularity

It’s one of the biggest assumptions we’ve ever made about the Universe. Here’s why it’s wrong.

Ethan Siegel
Aug 3, 2018 · 8 min read

Almost everyone has heard the story of the Big Bang. But if you ask anyone, from a layperson to a cosmologist, to finish the following sentence, “In the beginning, there was…” you’ll get a slew of different answers. One of the most common ones is “a…