How did the Big Bang occur if there was nothing?

How did the Big Bang occur if there was nothing?

The universal origin story known as the Big Bang postulates that, 13.7 billion years ago, our universe emerged from a singularity — a point of infinite density and gravity — and that before this event, space and time did not exist (which means the Big Bang took place at no place and no time).

Was the Big Bang an explosion if not what was it?

But the Big Bang wasn’t an explosion that destroyed things. It was the beginning of our universe, the start of both space and time. Rather than an explosion, it was a very rapid expansion, the event that started the universe growing bigger and bigger.

How do we know there was nothing before the Big Bang?

“There was nothing around before the Big, Big Bang,” Hawking said. His theory is based on the assumption that the universe has no boundaries. The Big Bang theory holds that the universe in retrospective can shrink to the size of an extremely small “subatomic ball” known as the singularity.

What evidence supports the theory that the Big Bang happened?

Three key pieces of observational evidence lend support to the Big Bang theory: the measured abundances of elements, the observed expansion of space, and the discovery of the cosmic microwave background (CMB). The CMB refers to the uniform distribution of radiation that pervades the entire universe.

Can something be created from nothing?

Something can be created from nothing But such a perfect vacuum may not exist. So particle-antiparticle pairs can be created from “nothing”, that is from no particles to two particles, but energy must be provided, so these particles can be viewed as having been created from the energy.

How can the universe have no beginning?

Perhaps our universe has always existed — and a new theory of quantum gravity reveals how that could work. They found that it’s possible that the universe had no beginning — that it has always existed into the infinite past and only recently evolved into what we call the Big Bang.

Why does the Big Bang theory say that nothing exploded?

Answer Wiki. The Big Bang theory doesn’t say that nothing exploded. What it says is that, about fifteen billion years ago, all of the universe’s matter, energy, and space-time was bound up in a singularity, an infinitely dense single-point body (like the singularity at the heart of every black hole).

Did the Big Bang really explode in a mushroom cloud?

It didn’t explode in a scene of shrapnel and fire, and there was definitely no mushroom cloud. The big-bang theory of the universe is derived from Albert Einstein’s general theory of relativity and the idea that the universe expanded from a miniscule dense collection of energy called a singularity.

What is the Big Bang theory of space?

In fact, the Big Bang theory suggests that space itself expanded. “If it were an explosion it would have a center,” said physicist Paul Steinhardt, director of the Princeton Center for Theoretical Science at Princeton University in Princeton, N.J. “We actually observe that everything is moving away from everything else.

What are the most confusing aspects of the Big Bang theory?

Another confusing aspect of the theory is the idea that at the very moment of the Big Bang, the universe existed in a single point, a singularity of infinite temperature and density. Although this is what the theory says, scientists think that’s where the Big Bang theory becomes inadequate.