How is it possible that 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 existed 1 second after the Big Bang?

As space expanded, the universe cooled and matter formed. One second after the Big Bang, the universe was filled with neutrons, protons, electrons, anti-electrons, photons and neutrinos.

How many seconds was the Big Bang?

At t = 1 x 10-43 seconds, the universe was incredibly small, dense and hot. This homogenous area of the universe spanned a region of only 1 x 10-33 centimeters (3.9 x 10-34 inches). Today, that same stretch of space spans billions of light years.

How many seconds has the universe existed for?

436,117,076,900,000,000 seconds That is a bit more than 13.82 billion years.

What happened to the universe after the Big Bang?

No one knows exactly what was happening in the universe until 1 second after the Big Bang, when the universe cooled off enough for protons and neutrons to collide and stick together. Many scientists do think that the universe went through a process of exponential expansion called inflation during that first second.

Is the Big Bounce a big bang or Big Bang?

The Big Bounce would make a departure from western civilization’s view of reality since St. Augustine, because it would recognize that time actually existed before the universe as we know it. But whether it as a Big Bang or a Big Bounce, the question of what existed before our present universe remains an open question.

Was the Big Bang the beginning of time?

One idea is that the Big Bang isn’t the beginning of time, but rather that it was a moment of symmetry. In this idea, prior to the Big Bang, there was another universe, identical to this one but with entropy increasing toward the past instead of toward the future.

Is the Big Bang a point in space?

“The Big Bang is a moment in time, not a point in space,” said Sean Carroll, a theoretical physicist at the California Institute of Technology and author of “The Big Picture: On the Origins of Life, Meaning and the Universe Itself” (Dutton, 2016). Sorry, the video player failed to load. (Error Code: 100013)