Big Bang Cosmology was first proposed (although not by that name) in 1930 by Jesuit priest Georges LeMaitre. It became the standard cosmology after the discovery of Cosmic Microwave Background Radiation in 1964, and all alternatives to BBC are now almost pseudo-science.
Scientists believe that the Big Bang occurred approximately 13.77 billion years ago.
13.738 billion years ago.
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.
Read Stephen Hawking's "A Brief History Of Time".
The current estimate for the initial expansion of the universe dubbed "The big bang" occurred about 13.7 billion years ago.
According to the believes of physics and the big bang, we know that the big bang was both big and a bang. Since we are still receiving radiation from the big bang, So considering that factor I would say that it was big and a bang. What do you believe?
No, scientific inquiry cannot study events that occurred before the Big Bang. The Big Bang is the origin of the universe and the laws of physics as we know them. Anything before that is currently beyond the realm of scientific investigation due to the limitations of our current understanding and technological capabilities.
The big bang occurred approximately 13.7 billion years ago.
The big bang occurred approximately 13.7 billion years ago.
The Big Bang.
The most used expression is big bang.
The Big Bang is believed to have occurred approximately 13.8 billion years ago, making it the earliest event in time that we know of.
Whatever planet you have in mind, if it's in the Solar System, it was 'created' during the big-bang. The big-bang occurred 13.798 ± 0.037 Billion years ago.
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.
Read Stephen Hawking's "A Brief History Of Time".
The current estimate for the initial expansion of the universe dubbed "The big bang" occurred about 13.7 billion years ago.
There is no data on what might have occurred before the Big Bang. There is not even a consensus on whether the phrase "before the Big Bang" is valid to begin with.That having been said, cosmologists now strongly favour non-cyclical models of the universe; the hypothesis that the Big Bang might be a continuation of the cosmos following a preceding Big Crunch is very much out of favour.
evidence shows that the big bang when the universe started has occurred around 13.7 billions years ago.
It is believed to have occurred 13.7 billion years ago.