An astrophysicist would tell you that everything about that statement is wrong.

"That's not at all how we should think about the Big Bang," says Torsten Bringmann.

Bringmann is a professor and works with cosmology and astroparticle physics at the University of Oslo (UiO).

Are Raklev, a professor of theoretical physics at UiO, has noticed that a lot of descriptions give a misleading picture of what the Big Bang theory actually states.

Raklev and Bringmann take us through the most common misunderstandings.

Warm and dense

First of all, what does "Big Bang" really mean?

"The Big Bang theory is that about 14 billion years ago the universe was in a state that was much warmer and much denser, and that it expanded. That's it, it's not much more than that," says Raklev.

Since then space has continued to expand and has become colder.

Based on the theory, scientists have gained a clearer overview of the history of the universe, such as when elementary particles were formed and when atoms, stars and galaxies formed.