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The big bang theory reveals the beginning of the universe. It states that the Universe was formed about 14 billion years ago for a giant explosion of very dense and hot matter which then expanded and as it expanded, it started to cool down by going through different transitional phases. Since, it has been expanding.
The Big bang theory has the answer of every creation in the universe. The big bang theory states, all the matter that are present in the universe came to existence at the same time of the big bang. At that time, all the matter was compacted into one single point which had infinite density and intense heat that is known as singularity. But there is a misunderstanding among most of the people that big bang was an explosion where
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Which suggest that, the universe is expanding because the galaxies are moving away from us. So, if the universe is expanding, then it must have been much smaller in the past. Going back far enough, there was a moment when all the matter in the Universe was packed into a point and expanded outwards and that moment was the big bang. It is possible to work out when the big bang happened by the speed of the galaxies movement from each other about 14 billion years ago. We cannot really see the galaxies moving, but the clue is present in the light coming from them which is known as red …show more content…
Light is travel to Earth from other galaxies. As the light from that galaxy gets closer to Earth, the distance between Earth and the galaxy increases, which causes the wavelength of that light to get longer. This is similar to the effect of sound waves, which also happens with light waves. It also happens in daily life as an ambulance approaches near us, the siren pitch seems to increase, and as it moves away from us, the siren pitch decreases. If everything in the universe is moving apart from everything else, then those light waves should move further apart and get longer. Longer wavelengths are seemed as red, and that’s why it is called the red shift. This redshift of light gives scientists information on the speed and direction that a star is moving. This tells scientists that stars are not only moving away from us, but they are also moving away from each other. If the universe is currently growing, then the universe was smaller in the past. There must have been some point in time when the universe was half its current size. The further away a galaxy is, the more its light is red-shifted.
A website called study.com states that, in the 1920s, Edwin Hubble used the 100-inch Hooker telescope in Southern California to study the Andromeda Galaxy. He took pictures of faint galaxies and studied them. Eventually, he was able to calculate the velocity for the galaxy and show that everything is
In the last hundred years we have made enormous progress in studying not our galaxy but ones billions of light-years away. Only a few hundred years ago our world seemed so big that there were areas of the world that had never been charted and people believed that the Earth was flat (and yes for some reason a few people still believe that today). If we continue to make progress at thus rate the universe will actually begin to seem smaller because of how much more we might know.
In Alan Lightman’s, “Our Place in the Universe,” he describes his experiences in the Greek Isles explaining how meek it made him feel to be surrounded by the vast ocean with no land in sight except a small strip of brown in the distance. Great thinkers throughout history, have been exploring the visible variety of shapes, colors, and sizes, though the greatest of these are size, from the smallest atom to gargantuan stars. These massive differences in size change the way we view ourselves in the universe. (470) Garth Illingworth, from the University of California, has studied galaxies more than 13 billion light years away from us.
By 1936, astronomers had realized that the hazy balls they sometimes saw in their telescopes, which looked like stars obscured by gas, were actually galaxies (Hibbison).
Here are some of the theories that affirm the validity of the big bang. As was written in the previous paragraph, the big bang theory grew out of Einstein’s equations of general relativity in which he related the form in which space is shaped to how matter is spread. And in the big bang theory, the universe (matter, space time, energy) is spread out as a result of an explosion. Do you now see the
Billion years ago, there was an extra-ordinary event without which nothing would exist. It was the beginning of the universe. It was the time when a large amount of energy in an infinitely small space violently expanded and led to the creation of universe and everything else that we see around us today. It can perhaps be regarded as the greatest scientific achievement to understand the history and nature of how the universe came into being.
About 13.8 billion years have passed and only in the past 100 years have humans even come close to figuring out how it started. Georges Lemaitre was the first to propose the idea of the ‘big bang theory’ as the creation of the universe. the big bang theory states that all matter in the universe was originally condensed into an area smaller than the ball of a ballpoint pen and the radius rapidly expanded at a rate of one million million million million million times in less than a millionth of a second. That idea is generally accepted by most scientists, but not all scientists agree. Some scientists have created various other creation theories. Such as the steady state theory which was unveiled in 1948 by two men by the names of Hermann Bondi and Thomas Gold. Bondi and Gold had worked with Fred Hoyle to create this theory. The steady State theory suggested that galaxies were constantly moving away from each other and in between the galaxies, new galaxies would form out of newly created matter keeping the universe semi-uniform in appearance. But the steady state theory was short-lived due to new scientific discoveries, like microwave radiation. But the origin of the universe is still highly debated. One thing scie...
The first reference to the Andromeda Galaxy was around 964 by the Persian astronomer Abd al-Rahman al-Sulfi in his Book of Fixed Stars in which he described it as like a little cloud. After this the first description of the Andromeda Galaxy through a telescope was by a German Astronomer by the name of Simon Marius on December15, 1612. After this Charles Messier catalogued the Andromeda Galaxy in M31 in the year of 1764 which made people incorrectly give credit to Messier for the discovery of this galaxy although it was visible to the naked
The Earth, our home that is but a speck in a vast and ever expanding universe. Since the dawn of time humans have pondered why are we here, and who are we? During ancient times religion was the stiff spine that bound the book together, but as we have evolved so has our reliance on religion from what it once was. The earliest interpretation of our world was an archaic concept that biblical writers in Israel thought that the earth was flat and at the center of the universe. Theories like these were the mindset of the day that god was there, god was everything, later when the field of observational cosmology came to fruition with the theory of the Primordial Egg it disputed almost all that came before it. Cosmology helped us determine the “Laws
In 1912 the astronomer Vesto Slipher who studied the light spectrum of objects in space that first noticed the redness of other galaxies as they appeared the skies. Some years later in 1929 Carl Hubble discovered that the other galaxies are moving away from us. While studying the light from Type 1a supernova explosions he observed a Doppler effect in the light from the supernova the farther away the redder the light that he observed. A Type 1a supernova is a binary star system where a white dwarf star absorbs the gas of the other one and thermonuclear explosion when it get...
This statement is backed up by the concept is backed up by red and blue shift. From electromagnetic radiation and, where the object sits on the spectrum to the corresponding wave lengths and colours, scientist can tell where objects are moving and how fast. This is also where the Doppler effect comes into play, where the effect produced by a moving source of waves in relation to the position of the observer. For example, if the light given off by the object is red, it means the waves are low frequency, and therefore stretched out, the object is moving away. There are numerous theories relating to the origins of the universe, such as the steady state. The steady state theory is that matter is continuously created as the universe expands, the overall density of the universe remains in the same and the universe has existed forever. Another theory is creationism, relating to a supreme being creating the universe. Evidence which supports this consists of religious scriptures, although this theory is not as popular as the Big Bang. Commonly throughout the song “Set in motion by the big bang,” or “It all started with a big bang”
Creation Stories, myths that explain the origin of the universe, or cosmos. The origin of the cosmos forms one of the principal themes of mythology throughout the world. (Rev. Bruce Vawter).
Astronomers believed the Universe was created about 14 billion years ago. During that time, the entire Universe was inside a bubble that was thousands of times smaller than a pinhead, and it was insanely hot and dense. Out of nowhere this little bubble started expanding. This expansion created what we know as the Universe. In such little time the Universe went from the size of an atom to the ginormous galaxy we have that is continuously growing.
Redshift -and blueshift- describe how light changes as objects in space move closer or further away from earth and other planets. American astronomer, Edwin Hubble was the first to theorise and illustrate the redshift phenomenon and link it to the thought of an expanding universe. His observations, revealed in 1929, showed that nearly all galaxies he observed are moving away from each other. Hubble studied the Andromeda Galaxy, and to do this he used the 100-inch Hooker telescope located in South California. It was at that point when Hubble took long exposure images of distant galaxies. He was able to calculate the velocity of the pictured galaxies and was able to prove that everything is expanding and moving
Figure 7. Wright, Ned. Las Campanas Redshift Survey. Digital image. Talk Origins. N.p., n.d. Web. 19 May 2014. .
While we have proven that the universe is expanding at an exponential rate, we are unable to find where it came from. In addition, there is no way to find how this single point of matter formed or where it came from. If you take into account this lack of evidence and proof, we can 't prove that this is how the universe was formed. Another very popular explanation for the formation of our universe is that