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The question is fun, and it would be fun to calculate. But the answer would have no meaning at all, because the question suggests a level of precision that the answer can't possibly have. We would have to be able to accurately identify the time of the event to at least the nearest second, which is impossible. Also, any estimate of the number of seconds would not be reported to that degree of accuracy, so converting back to the units you started with would be called for. Not only can we get no closer than billions of years, we are not even certain beyond doubt that it happened. The question is a little like asking 'How many cubic centimeters of water are there on Earth?' We cannot know the answer to the level of accuracy that 'cubic centimeter' suggests. I think about 473,040,000,000,000,000 seconds. Multiply 15 billion years by 365, then 24, then 60, then 60 again and you'll have it.

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15y ago
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14y ago

So far, about 13 billion years - our Universe is still expanding.

It really depends what you want to include, and what not, under the term "Big Bang". There was a tiny instant where the Universe was smaller than the current size of a proton. At that moment, the Universe was extremely hot, and dense. After just a fraction of a second, it was quickly expanding; eventually atoms formed, etc. Better do some reading on the Big Bang and the first moments of the Universe, then decide by yourself what you want to include under the term "Big Bang".

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14y ago

Scientists think the big bang happened over 13 billion years ago, or at least that is the current consensus. At one time the date was 15 billion years ago.

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13y ago

The "Big Bang" occurred about 13.3 to 13.9 billion years ago.

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11y ago

the big bang was around 14 billion years ago

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8y ago

In our universe, just once.

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14y ago

13.5 billion years

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12y ago

About 14 billion years ago.

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13y ago

next year

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Q: Approximately how long ago is the big bang thought to have occurred?
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Related questions

How long ago was big bang?

It is believed to have occurred 13.7 billion years ago.


What are the main colors of big bang theory?

No one can say. It's just a theoretical explosion that scientist speculate may have occurred long before man was here to witness-assuming it happened. **** Actually, the Big Bang was not an explosion -- it was an expansion. To say scientists "speculate" about, or that it is "theoretical" it is like saying they speculate that our Earth "theoretically" goes around our Sun. Both these facts about our Universe make several predictions about what we would see if they were true. If ANY one these predictions happened to turn out to be false, then scientists would be questioning whether the Big Bang occurred. However, ALL of them have been observed just as predicted by Big Bang Cosmology. To say that the Big Bang "may have occurred" is like saying Anasazi civilization "may have occurred" before anyone was able to write about them. Both cases -- the Big Bang and the Anasazi -- left a LOT of evidence of their existence. Only two groups of people would say that scientists "speculate" the Big Bang "may have occurred" and "assuming it happened": 1) Those totally ignorant of science. 2) Those trying to spread ignorance of science.


How long is the movie Nanny McPhee and the big bang?

Nanny Mcphee and the big bang is 109mins long.


What is Eris length of day and year?

To to to to long


Approximately how long ago was the big bang thought to have occured?

First of all, the Big Bang was NOT an explosion; certainly not an explosion of dense matter into empty space. Secondly, all observational evidence points to the expansion having begun about 13.7 billion years ago.


How long after the big bang did it take for stars to form?

the theory states that atoms formed during the big bang (like right as the big bang happened) Protons and neutrons were allowed to form about one second after the Big Bang. Electrons joined to nuclei to form permanent atomic bonds about 377,000 years later.


How long is The Outsiders book?

amazing! I thought it was a touching story and ha a great story line...


How long does it take light to travel from the epicenter of the Big Bang to the farthest reaches of the universe?

Good question. Did the universe exist before the big bang, or did the big bang create the universe and the very fabric of space and time itself? The entire CONCEPT of the "Big Bang" is still a matter of dispute, with arguments about what may have happened early in the history of the universe. Our understanding of the primordial basics of high-energy physics is still somewhat fluid and subject to revision. Best guess: There probably was no "there" for light to expand in before the Big Bang. We believe that the Big Bang occurred approximately 14 billion years ago, although the number fluctuates by a billion years either way. One major question; did the fabric of the universe expand at super-luminal speeds, or did it expand at the speed of light? And was the speed of light different then? We cannot say for certain.


What is one of the primary unaswered questions about the origin of the universe?

It was what came before the big bang, and the big bang theory states that the universe started as a dense nucleus of matter: a huge amount of matter concentrated in a tiny spot. This is the conclusion of equations and evidences that prove that the universe has been and continuous to expand: since it has been expanding, there was a moment when it was as small and dense as it is possible . So, the expansion is the result of violent explosion. The time during which the expansion has been happening (this is how long ago the big bang occurred) has been estimated thanks to the observation of the speed of recession of the galaxies, but nothing can be told about what came before the big bang occurred .


The big bang hypothesis suggests that 20 billion years ago?

Cosmologists now conclude that the Big Bang (BB) occurred 13.7 billion years ago. Since it is meaningless to speak of something happening "before" the BB -- there was no time or space to have a "before" -- BB Cosmology makes no statement about what happened that long ago.


How long was the big bang?

Realistically - it is still going on. The "big bang" was a term coined to ridicule an explanation for the birth of the universe. It was not a "bang" more a rapid expansion. As this expansion is still continuing, the "big bang" has not finished.


What are the release dates for Billy Bang Long Over Due - 2012?

Billy Bang Long Over Due - 2012 was released on: USA: 15 October 2012