The Big Bang theory suggests that the universe began as a hot, dense point, expanding into the cosmos we observe today.

When we go backwards in time through the history of the cosmos, the distances and volumes shrink, while the average energy ...

In order to understand how physics works at a singularity like the Big Bang, we need a theory for how gravity behaves according to quantum theory. Unfortunately, we do not have one. There are a ...

Black hole formation could be a little Big Bang in reverse, coupling the matter of a dying star with dark energy, the ...

In a finding that proves correct a key prediction of Einstein’s general theory of relativity ... since the dawn of time in the singularity of the Big Bang, the universe has been expanding ...

Gross: The big bang theory is the idea that if we go back ... That is, we find a singularity, in which the forces that act on particles become infinitely strong. Things break down completely ...

If true, this theory could explain how all of the matter in our universe was created.

There may well be simpler, more powerful and more testable explanations for the basic properties of the universe than those ...

It is still unclear why this happened or what a singularity actually is ... where has all that energy gone? The Big Bang theory predicts that as the universe expanded, it cooled.