Big Bang Theory (scientific model)

How big is the universe?

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Answered 2014-12-29 14:52:36

The universe is so, extremely giant, it's pretty much impossible to actually imagine how big it really is. The best thing to do is to start with something small and work up from there; so let's start with the Earth. Earth may seem a giant place to us humans, but no where near in size to the universe. But, at approximate, the Earth is about 8,000 miles wide. If you drove a transglobal tunnel down through the middle of the Earth (which is not possible, but just imagine it) at a non - stop speed of 60mph, then you'd pop out the other side in about 5.5 days. Which isn't that long with what will come up. Now, lets try the distance to the Earth to our Moon. Every month, the Moon will get further and closer away from us. But, on average, the distance from Earth to Moon is 240,000 miles. Travelling at a speed of 60mph, you'd get to the Moon in about 168 days, which is quite long. Now, lets try something even longer; the Earth to the Sun. This distance is about 92 million miles, and would take you about 176 years to get there by 60mph. Now, to cross our galaxy, the Milky Way. By going at 60mph, you'd have to travel 621 million billion miles to cross the Milky Way. It would take 1 million billion (or, to be more precise, 1,181,401,000,000,000) years to accomplish. So, this tells us that a space car would be pretty cool, but 60mph is a pathetic speed for travelling across space. So, we'll think of something super - duper fast; light. The speed of light can travel a mind - blowing 186,000 miles in 1 second, at approximate. We're talking about a speed so fast it could travel 6 trillion miles if it kept on moving at it's normal speed for 1 year. This is known as a 'Light year'. But, even with our super fast speed of light travel, it'd take it about 100,000 years at approximate to cross the Milky Way. And, to move onto our universe. With out most powerful telescopes, we can measure that the universe is 15 billion Light years in every direction. So, at the speed of light, it'd still take at least 30 billion years to cross the universe.

For a conclusion, it's pretty much impossible to measure out the proper size of the universe.
It never ever ends. It goes on and on and on ........
It is theorized to be infinite but there is no way to know with our technology because we can only see a certain distance using different types of technology.

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Answered 2014-12-28 22:36:06

That is not currently known. The observable Universe has a radius of about 46 billion light-years. The entire Universe is probably much larger.

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The Big Bang Theory tells what happen at the begning of the universe. How the Earth comes into the universe

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What does the big bang theory explain about the universe?

Our universe is expanding

Before the Big Bang the universe was much than it is now?

There was no Universe (or time) before the Big Bang.

According to the big bang theory the universe began as a?

According to the big bang theory the universe began about?

Was the big bang theory the theory of the universe?

"The theory of the universe" is a very nebulous phrase.The Big Bang theory is one explanation of how (not why) the Universe began.

According to the Cyclic Universe Theory do any previous universe affect ours?

No. Universe A expands from a 'Big Bang' stops expanding, and contracts until there is a 'Big Crunch'. Then there is a new big bang and the beginning of Universe B, a middle, and another big crunch, a big bang with Universe C and so on. At the time of any 'big crunch', all matter and energy from that universe ceases to exist. It cannot manifest itself until after the next 'big bang', and then has no relation to anything in its previous manifestation.

If there was no universe or plants where did the big bang happen?

It happened in the center of the universe, for which it is still expanding on the universe.

What was the first event in the universe?

Scientists believe the "first event" in the Universe was the Big Bang. The Big Bang Theory attempts to explain how the universe was originally created.

How big do scientists estimate the universe was just before the big bang occured?

The universe came into existence with the Big Bang, so asking how big it was before that is meaningless.

How the temperature of the Universe dropped after the Big Bang?

The big bang was the BEGINNING of the universe so there was no temperature before it :P

What are the different theories about the origin of the universe?

Steady State Plasma theory Inflation Universe Big Bounce Cyclic Universe Big Bang Nebular or Dust Cloud Theory Big Crunch Theory

What is The hottest object in the universe?

The condensed universe itself, at the big bang.

Theories for the origin of the universe?

Big bang, and God creating the Universe.

How was the very small and very hot universe bubble born before Big Bang?

It wasn't. The Big Bang was the beginning of the universe; the universe didn't exist before then.

The age of the universe according to the big bang?

The Big Bang Age of the Universe is around 13.5 to 14 Billion Years.For those who do not believe in the Big Bang, I estimate the Universe to be around 16.4 Billion Years.

Did the big bang create the world?

Big Bang is believe to be origin of the universe without willing for creation. By believing in Big Bang, it mean believe it just happen by nature. It is not universe is create by Big Bang but Universe or Galaxy or Planet earth are consequence from Big Bang.

What is big universe or galaxy?

the universe is bigger than the galaxy because our galaxy (the milky way) is in the universe.

How big was the universe before the Big Bang?

Answer 1There was no universe before the Big Bang, and we need to explain that a bit. The Big Bang brought with it spacetime, which is the fabric or the "space" that is the volume of the universe. It isn't like there was a big empty universe that the Big Bang filled with "stuff" after it appeared. The origins of the universe in the moment before the Big Bang can only be guessed at. The point is that there wasn't a universe before the Big Bang; the Big Bang created the universe itself, and all the things in it appeared in time. The universe, the spacetime that is its fabric and defines its volume, is still expanding today, by the way.Answer 2We can never see the Big Bang or what happened around that time, because photons were not free to travel through the universe yet.Mathematically speaking, the universe was at a singularity which has no size. The Heisenberg uncertainty principle dictates that the universe may have been created in a volume of zero, which means there was nothing measurable in existence. A quantum fluctuation caused an instability which accelerated the energy outward, causing the expansion we see today.

Define Pulsating universe theory?

the pulsating universe theory is when the universe expands (the big bang) then contracts (the big crunch) and so on (it's pulsating). according to this theory right now the universe is expanding, but then it will contract

Is there any chance to occur the big bang without universe?

Our concept of the "big bang" has no explanation about how or why, but our hypothesis is that there was NOTHING before the Big Bang created the universe.