One of the most persistently asked questions has been: How was the universe created? Many once believed that the universe had no beginning or end and was truly infinite. Through the inception of the Big Bang theory, however,no longer could the universe be considered infinite. The universe was forced to take on the properties of a finite phenomenon, possessing a history and a beginning.
About 15 billion years ago a tremendous explosion started the expansion of the universe. This explosion is known as the Big Bang. At the point of this event all of the matter and energy of space was contained at one point. What exisisted prior to this event is completely unknown and is a matter of pure speculation. This occurance was not a conventional explosion but rather an event filling all of space with all of the particles of the embryonic universe rushing away from each other. The Big Bang actually consisted of an explosion of space within itself unlike an explosion of a bomb were fragments are thrown outward. The galaxies were not all clumped together, but rather the Big Bang lay the foundations for the universe.
The origin of the Big Bang theory can be credited to Edwin Hubble. Hubble made the observation that the universe is continuously expanding. He discovered that a galaxys velocity is proportional to its distance. Galaxies that are twice as far from us move twice as fast. Another consequence is that the universe is expanding in every direction. This observation means that it has taken every galaxy the same amount of time to move from a common starting position to its current position. Just as the Big Bang provided for the foundation of the universe, Hubbles observations provided for the foundation of the Big Bang theory.
Since the Big Bang, the universe has been continuously expanding and, thus, there has been more and more distance between clusters of galaxies. This phenomenon of galaxies moving farther away from each other is known as the red shift. As light from distant galaxies approach earth there is an increase of space between earth and the galaxy, which leads to wavelengths being stretched.
In addition to the understanding of the velocity of galaxies emanating from a single point, there is further evidence for the Big Bang. In 1964, two astronomers, Arno Penzias and Robert Wilson, in an attempt to detect microwaves from outer space, inadvertently discovered a noise of extraterrestrial origin. The noise did not seem to emanate from one location but instead, it came from all directions at once. It became obvious that what they heard was radiation from the farthest reaches of the universe which had been left over from the Big Bang. This discovery of the radioactive aftermath of the initial explosion lent much credence to the Big Bang theory.
Even more recently, NASAs COBE satellite was able to detect cosmic microwaves eminating from the outer reaches of the universe. These microwaves were remarkably uniform which illustrated the homogenity of the early stages of the universe. However, the satillite also discovered that as the universe began to cool and was still expanding, small fluctuations began to exist due to temperature differences. These flucuatuations verified prior calculations of the possible cooling and development of the universe just fractions of a second after its creation. These fluctuations in the universe provided a more detailed description of the first moments after the Big Bang. They also helped to tell the story of the formation of galaxies which will be discussed in the next chapter.
The Big Bang theory provides a viable solution to one of the most pressing questions of all time. It is important to understand, however, that the theory itself is constantly being revised. As more observations are made and more research conducted, the Big Bang theory becomes more complete and our knowledge of the origins of the universe more substantial.
The big bang theory deals with the formation and evolution of the Universe, it has nothing to do with the origin of life on Earth.
The Big Bang theory deals with large-scale aspects, and with the early development of the Universe. The creation of life on Earth, and perhaps on other planets, is not part of the Big Bang theory.
Hello i am minakshi answer is that the big bang theory is an example of old scientific theory as big bang theory explains that there was an explosion but the isotropy and the homogenity of the universe is not explained by big bang theory to explain his we connect inflatation theory with big bang theory to explain it so the big bang theory is also an example of old scientific theory.
The duration of The Big Bang Theory is -1320.0 seconds.
The Big Bang is the theory that was developed to describe the origins of the universe.
The big bang theory is a model of cosmology it does not have any relation with earth's creation .
Without the big bang there wouldn't be an Earth to have a history.
The big bang theory deals with the formation and evolution of the Universe, it has nothing to do with the origin of life on Earth.
No, that was just part of the story for the TV show, The Big Bang Theory.
No. The Big Bang theory is an explanation on the formation of the universe. Earth did not form until billions of years later.
Big Bang Cosmology deals with the start (not necessary a creation) of our Universe as a whole, not with our Earth.
The Big Bang Theory tells what happen at the begning of the universe. How the Earth comes into the universe
the "big bang" theory, is a theory as to how the universe was created from the explosion of a single, very large, very dense, body of matter. so in "theory" the people or earth only exist because of the big bang
The Big Bang theory deals with large-scale aspects, and with the early development of the Universe. The creation of life on Earth, and perhaps on other planets, is not part of the Big Bang theory.
Implying that you believe in The Big Bang Theory then yes our "World" aka Earth was created from the products of The Big Bang.
The most recent theory that upholds the Big Bang theory, but suggests a sudden expansion after the bang, is called the inflation theory. Earth is 4.54 billion years old.
Hello i am minakshi answer is that the big bang theory is an example of old scientific theory as big bang theory explains that there was an explosion but the isotropy and the homogenity of the universe is not explained by big bang theory to explain his we connect inflatation theory with big bang theory to explain it so the big bang theory is also an example of old scientific theory.