Can anyone explain the BIG-BANG to me?

Question

How is it that everything that is, came from nothing?

Answer 1

Something REALLY REALLY big popped. Stupid needle...

Answer 2

The Big Bang Theory till sometime was the most widely accepted model to explain the origin of the universe. It presents the vision of the so called inflationary cosmology, wherein our universe is continuously expanding and is also limited in time & space. The Theory of an Expanding Universe was first put forward in 1927 by a Belgian priest called Georges Lemaître, while the word 'Big Bang' was first coined rather despairingly by Fred Hoyle. On the basis of observations & interpretation of the phenomenon of Red Shifts, Hubble was the first to confirm that galaxies were receding from us in all directions. In 1964 Penzias and Wilson discovered the predicted existence of cosmic background radiation (the glow left over from the explosion itself). Combined with the basis of Einstein's General Theory of Relativity all these formed the scientific proof of the Big Bang Model.

As per the Big Bang Theory about fifteen billion years ago our entire universe was in a state called singularity. This was the moment before creation, when space and time did not exist. Thereafter there was a great explosion, trillions of degrees in temperature, and created not only fundamental subatomic particles, but also space and time itself. The universe at this point was an ionized plasma where matter and radiation were inseparable, and the universe was undergoing a rate of expansion many times the speed of light.

About 100,000 years after the Big Bang, the temperature of the Universe dropped sufficiently for electrons and protons to combine into hydrogen atoms. The temperature fell to such an extent that the energy density of the Universe began to be dominated by massive particles, rather than the light and other radiation which had predominated earlier. This change in the form of the main matter density meant that the gravitational forces between the massive particles could begin to take effects, so that any small perturbations in their density would grow. Ten billion years later we see the results of this collapse. This in short is the Big Bang Theory about the creation of the universe.

Answer 3

The Big Bang Theory is the dominant scientific theory about the origin of the universe. According to the big bang, the universe was created sometime between 10 billion and 20 billion years ago from a cosmic explosion that hurled matter and in all directions.

In 1927, the Belgian priest Georges Lemaître was the first to propose that the universe began with the explosion of a primeval atom. His proposal came after observing the red shift in distant nebulas by astronomers to a model of the universe based on relativity. Years later, Edwin Hubble found experimental evidence to help justify Lemaître's theory. He found that distant galaxies in every direction are going away from us with speeds proportional to their distance.

The big bang was initially suggested because it explains why distant galaxies are traveling away from us at great speeds. The theory also predicts the existence of cosmic background radiation (the glow left over from the explosion itself). The Big Bang Theory received its strongest confirmation when this radiation was discovered in 1964 by Arno Penzias and Robert Wilson, who later won the Nobel Prize for this discovery.

Although the Big Bang Theory is widely accepted, it probably will never be proved; consequentially, leaving a number of tough, unanswered questions

Answer 4

Wikipedia has a whole article about it at ...

http://en.wikipedia.org/wiki/Big_bang

However, the new thought is that it wasn't so much of a bang as it was a bounce. Matter contracted to a point (the bang) at which point it began expanding again. The main idea behind the quantum theory of a Big Bounce is that, as density approaches infinity, so the behavior of the quantum foam changes.

http://en.wikipedia.org/wiki/Big_bounce

More on the big bounce....

http://www.world-science.net/othernews/060514_bouncefrm.htm

After reading, you'll understand that everything didn't come from nothing, the universe had infinite density

Answer 5

All at once about 15 billion years ago, something caused a large plasma to come into existence. Recent articles (within the last year) in Scientific American and Discover even state that there may have been something before.
Stephen Hawking proffers that the universe came into existence when all the matter compacted to some small amount that became critical (due to repulsion) and expanded (rather than exploded) rapidly.

Answer 6

unfortunately it's very hard to describe the big bang because it was a unique event there is nothing to compare it to in everyday life. the (hot) big bang theory it just a theory that has a lot of evidence supporting it ie. cosmic microwave background radiation and red shift.

there are two scientific approaches to the studying of the big bang. einsteins general theory of relativity (deals with physics at astronomical scales) and quantum theory (deals with the universe on a subatomic scale). the problem is trying to fit the two theories together the act of doing that is called cosmology

before the big bang there was nothingness
then about 13.7 billions years ago everything came into existance, space, time and matter (now this is important before this point there was no time, no space and no matter there was nothing. you have to accept that. but the quantum principle has a concept on 'nothing' that will knock the socks of you, i will come back to this later). the entire universe was no bigger than an atomic nucleus and was extremely hot (billions of degrees) at once it started to expand. it took approx. 400000 years before atoms could form due to the temperature of the universe dropping. another 185 million years before the first stars form and another 3 billion year before the mature galaxies (including ours the milky way) started to form. another 6 billion years before our solar system stated to form. and now we are here about 5 billions years after our solar system was form.

back to the quantum principle - before all there was nothingness but nothingness became unstable and started to decay as it was decaying it started to boil, when it boil it started to make billions of bubbles each bubble started to expand. now here is the crazy bit' each one of them bubbles is a universe. basically the amount of energy to create a universe is cancel out by negative gravity. hence the universe came from nothingness.

Answer 7

you want to know why the universe exists?

first, it's possible something existed before so not necessarily from nothing.

second, in physics an antimatter and matter object can come from "nothing". something slightly asymmetrical about this creation would allow for something from nothing.

third, don't argue with the big bang. everything we have seen in the universe is spreading apart. at time in past it must have been closer together and had a really big bang from much smaller point. plus lot of other observation match models of universe.

Answer 8

There are a few theories,
The universe can only expand so far then collapse back in on its self, to a central point, and explode again.
We came into being by two universes in different dimensions touching each other, like matter and anti matter touching.
It is the end result of black hole worm hole theory.
Take your pick!

Answer 9

This is my own explanation and i believe that someday it will proven to be correct. >>> About 15 billion years ago and before our universe came into existence, there was an infinite space with nothing in it except for energy and when a ripple occured in this space our universe exploded into existence.

Answer 10

I CHALLENGE THE BIG BAG THEORY!

Why does everything had to start form a single point?

Who is to say there was nothing before?

Why not a cycle? Energy to matter and matter to energy? Why only one creation but many origins?

NOTHING, NOTHING in nature happens in a single event. It is always a series of events over and over, changing each time.

We try to simplify everything to single events. The universe may not be the end result of a single event but the continuous process of creation and destruction. Mater being transformed into energy and energy creating matter.

What is pushing the galaxies away? What is dark matter?

Has anyone seen the latest image of the shape of the universe?

http://images.search.yahoo.com/search/images/view?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Duniverse%26toggle%3D1%26cop%3Dmss%26ei%3DUTF-8%26fr%3Dyfp-t-501%26b%3D21&w=434&h=458&imgurl=www.grg.org%2Fcharter%2FUniverse.jpg&rurl=http%3A%2F%2Fwww.grg.org%2Fcharter%2Fgenesis.htm&size=59.7kB&name=Universe.jpg&p=universe&type=jpeg&no=24&tt=1,139,975&oid=3672f8065b3d2084&ei=UTF-8

After reading the article you understand why the scientist are come with all these crazy ideas trying to make sense of the universe. Readers of this post. WE HAVE NO CLUE of what happen or what is going on. We develop theories and math formulas to patch, cover, fix and other wise make sense of what we don't understand.

Answer 11

Well my theory is that the event horizon of 2 black holes collided, the mass was so great that it started to pull in more matter. This continued and the mass grew exponentially until most matter/light/time in the universe was drawn in. At this point, the huge mass caused a chain reaction, a vast explosion, spitting the matter out that would be formed into stars and planets again. Proving that even time has it's time.