Quiz: How Much Do You Know about the Big Bang?

Contrary to popular belief, the big bang model is not a theory of how the universe began. It is, in fact, the theory of how the universe has evolved over the last 13.8 billion years. […]

Not much is known about our universe before inflation. However, after inflation, our universe starting expanding and cooling, thereby allowing bigger and more complicated structures, such as, electrons, atoms, stars, and galaxies, to form. […]

The theory of relativity said that a static universe was impossible. Later, Lemaître described what an expanding universe would look like, based on general relativity, and this was later substantiated by Edwin Hubble. […]