Understanding the Big Bang and What Happened Before

KOMPAS.com – The Big Bang is generally considered to be the beginning of everything; About 13.8 billion years ago, the universe was observed to experience a Big Bang explosion and continue to expand.

However, what were things like before the Big Bang? What happened before the big bang that formed the universe?

Understanding the Big Bang

Before answering this question, the first thing to understand is what the Big Bang actually is.

Sean Carroll, a theoretical physicist at the California Institute of Technology, says the Big Bang was a moment in time, not a point in space.

So, at the time of the Big Bang, it is possible that the universe was very small or very large because there was no way to look into the past. However, all scientists know is that the universe is very dense and is rapidly becoming less dense.

Also read: Interesting Facts about the Big Bang Theory

As a consequence, there is actually nothing outside the universe because the universe, by definition, is everything.

So, at the time of the Big Bang, everything was denser and hotter than it is today, but there was no more “outside” the universe than there is now.

According to Carroll, wherever we are in the universe, if we trace back 14 billion years, we will come to a point where the universe was very hot, dense, and expanding rapidly.

No one knows for sure what happened in the universe until 1 second after the Big Bang, when the universe cooled enough for protons and neutrons to collide and stick together.

Many scientists believe that the universe experienced an exponential expansion process, called inflation, in its first seconds. This would refine the structure of space-time and could explain why matter is distributed so evenly in the universe today.

Also read: Mystery of Rare Gas Leaking from the Earth’s Core, Study Reveals It Was Formed After the Big Bang

Before the explosion

It is possible that before the Big Bang, the universe was an infinite expanse of dense, extremely hot material, which remained in a stable state until, for some reason, the Big Bang occurred.

This extra dense universe may be governed by quantum mechanics, which is physics on a very small scale.

Thus, the Big Bang represents the moment when classical physics took over primary control of the evolution of the universe.

For Stephen Hawking, this moment is the most important: He said, before the Big Bang, events could not be measured, and therefore could not be determined.

Hawking calls this theory a limitless proposal: Time and space, are finite, but have no boundaries or starting or ending points, just as the planet Earth is finite but has no edges.

Also read: NASA Builds Super Expensive Telescope to Investigate the Mystery of the Big Bang

2023-10-01 02:30:00
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