The Big Bang (Comparisive Of Two Major Theories)

1073 words - 4 pages

Big Bang

It is always a mystery about how the universe began, whether if and when it will end.

Astronomers construct hypotheses called cosmological models that try to find the answer.

There are two types of models: Big Bang and Steady State. However, through many

observational evidences, the Big Bang theory can best explain the creation of the


The Big Bang model postulates that about 15 to 20 billion years ago, the universe

violently exploded into being, in an event called the Big Bang. Before the Big Bang, all

of the matter and radiation of our present universe were packed together in the primeval

fireball -- an extremely hot dense state from which the universe rapidly expanded. The

Big Bang was the start of time and space. The matter and radiation of that early stage

rapidly expanded and cooled. Several million years later, it condensed into galaxies. The

universe has continued to expand, and the galaxies have continued moving away from

each other ever since. Today the universe is still expanding, as astronomers have


The Steady State model says that the universe does not evolve or change in time. There

was no beginning in the past, nor will there be change in the future. This model assumes

the perfect cosmological principle. This principle says that the universe is the same

everywhere on the large scale, at all times. It maintains the same average density of

matter forever.

There are observational evidences found that can prove the Big Bang model is more

reasonable than the Steady State model. First, the redshifts of distant galaxies. Redshift

is a Doppler effect which states that if a galaxy is moving away, the spectral line of that

galaxy observed will have a shift to the red end. The faster the galaxy moves, the more

shift it has. If the galaxy is moving closer, the spectral line will show a blue shift. If the

galaxy is not moving, there is no shift at all. However, as astronomers observed, the

more distance a galaxy is located from Earth, the more redshift it shows on the spectrum.

This means the further a galaxy is, the faster it moves. Therefore, the universe is

expanding, and the Big Bang model seems more reasonable than the Steady State model.

The second observational evidence is the radiation produced by the Big Bang. The Big

Bang model predicts that the universe should still be filled with a small remnant of

radiation left over from the original violent explosion of the primeval fireball in the past.

The primeval fireball would have sent strong shortwave radiation in all directions...

Find Another Essay On The Big Bang (comparisive of two major theories)

The Big Bang theory Essay

1180 words - 5 pages It is always a mystery about how the universe began, whetherif and when it will end. Astronomers construct hypotheses calledcosmological models that try to find the answer. There are twotypes of models: Big Bang and Steady State. However, throughmany observational evidences, the Big Bang theory can bestexplain the creation of the universe.The

The Big Bang Essay

1109 words - 4 pages The Big Bang is today accepted as the ground theory of how our universe was created. The theory is that our universe was created about 13.7 billion years ago from a very compact and energetic state and then grows to the size it is right now and continues to grow in the future. It is just like a balloon; it gets bigger and bigger the more air you blow into it, but it is only the space between all the stars and planets that is expanding. The...

The Big Bang Theory

1332 words - 5 pages The Big Bang Theory Why is the Universe expanding? What is Cosmic Back Ground Radiation (CBR)? There are many questions asked about our Universe, which we know so little about. Scientists, in their attempt to answer these and other confrontations, have found one idea that seems to explain much of what we don't understand: The Big Bang Theory. An explosion of incomprehensible speed was the beginning of our known Universe and existence....

The big bang

1854 words - 7 pages The universe is a magnificent place. There are thought to be more than 100 billion galaxies, each, with 100 billion stars (Hawking 48). There are vast clouds of gas, light years across, each taking on its own dazzling shape and color. In our solar system alone, there are planets asteroids, comets and moons. For millennia, humans have attributed the workings and beauty of the cosmos to the divine. Slowly, we learned that laws governed the motion...

The Big Bang Theory

3470 words - 14 pages The Big Bang Theory There have been many theories concerning what the universe looks like, how it became this way, and where it is going. The most popular theory that people hold today is that the universe began when all the matter ever present in the universe was contained in a tiny speck and that spec exploded. This is known as the Big Bang. This theory has developed a great deal since it was first conceptualized and continues to evolve...

The Big Bang Theory

1097 words - 4 pages The Big Bang Theory The steady state theory of cosmology claims that the Universe simply exists without changing with time. This theory presents many physical as well as philosophical difficulties. Evidence suggests that the Universe is expanding. While there are ways to explain expansion in a steady state universe, few astrophysicists believe this theory, because there is little evidence to support it. As the first widely held theory about...

Evidence for the Big Bang

1319 words - 5 pages Whether you happen to be walking down a neighborhood street on a starry night, or trekking across Canada in a car, or rising to the bright sunshine that beams through your bedroom window in the morning, many of us easily take it for granted, or perhaps it simply goes unnoticed that we are, human beings living on a planet called Earth; or that the beautiful stars in the sky have existed long before we did; or that our planet is but a tiny speck...

Scientific View of Creation and the Big Bang

1941 words - 8 pages Scientific View of Creation and the Big Bang A common question among people is why are things the way they are? How was our world created? There are many different theories, from a variety of views. In this paper I will discuss the scientific view of the creation theory. The theory that I will be discussing is the Big Bang Theory, this is currently the theory of creation accepted by most scientists as the explanation of the beginning of...

The big bang- how the universe began

998 words - 4 pages Question 1a) Infrared AstronomyInfrared Astronomy is a study of the Infrared Radiations emitted from celestial objects. All objects from trees, buildings on the earth to distant galaxies emit infrared radiation. The cosmic dust particles block the view of the visible universe such as the center of the Milky Way but these cosmic dust particles are transparent in the Infrared Radiation wavelengths. It is very significant for...

Gaia, God, and The Big Bang

1098 words - 4 pages “In the beginning…” These words launch the book of Genesis, conceivably the greatest first expression of any narrative. This biblical phrase is of absolute paramount considering that stirring at heart at of human nature are questions of existence and manifestation. In view of the fact that no YouTube videos of the Big Bang, of the Judeo-Christian God, or of Gaia creating order out of Chaos humans must rely on folklore, legends, and myths...

stereotypes in the big bang theory

1803 words - 7 pages 1DickhoutRiley DickhoutProfessor McloofEnglish 10130 September 2014The Biggest Bang In Geek HistoryAn analysis on the typical stereotyping in The Big Bang TheoryWhen I used to hear the words The Big Bang Theory I would automatically think of the theory that the universe...

Similar Essays

The Beginning Of Time The Big Bang

1252 words - 5 pages THE BEGINNING OF TIMEThere was a period in history when the beginning of the world in which welive in was a expressed through legends and myths, now, through the use ofincreasingly advanced scientific equipment we can see that the universe is morevast and complex than ever imaginable. The purpose of this paper is to bringlight to some of the modern beliefs regarding the origin of the universe...

Weaknesses Of The Big Bang Theory

1936 words - 8 pages Weaknesses of the Big Bang Theory The big bang theory was first suggested by a Belgian priest named Georges Lemaitre in the 1920s, when he suggested that the universe began from a single primordial atom. However the big bang theory was born from the observations which were made by Edwin Hubble that other galaxies were moving from earth at a high speed in different directions. This theory was further boosted by the Arno and Penzias Wilson’s...

The Big Bang Theory Essay

952 words - 4 pages How the universe was createdHow was this universe started? People still wonder. It's not simple as we all think; it's in fact very complex. Some people believe it to be science and some people think it's god that created everything. Many of us on earth believe that its all science, meaning astronomical observation and yet there are those who truly believe that it was the power of the all mighty god that made this all happen, many went...

The Big Bang Theory. Essay

1216 words - 5 pages Big Bang Theory It is always a mystery about how the universe began, whether if and when it will end. Astronomers construct hypotheses called cosmological models that try to find the answer. There are two types of models: Big Bang and Steady State.However, through many observational evidences, the Big Bang theory can best explain the creation of the universe. The Big Bang...