Web. 12 May 2014.
It's one of several scientific models that attempts to explain why the universe is the way it is. The theory makes several predictions, many of which have been proven through observational data. As a result, it's the most popular and accepted theory regarding our universe's development. The most important concept to get across when talking about the big bang is expansion. Many people think that the big bang is about a moment in which all the matter and energy in the universe was concentrated in a tiny point.
This theory is not excepted in the scientific community because in has no evidence to back it up. That doesn’t mean it isn’t a possibility. There are a few other theories of the creations of the universe, but no other theories are as excepted as the big bang theory. Some of the important stuff to know that I have covered is the eras right after the Big Bang, the Big Bang it self and a few of the possible endings to the universe. I hope with this information you can have a better understanding of the universe, its creation, and it’s endings.
Some astronomers think that MOND is the reason to why everything in the galaxy is being held together. Other researchers think dark matter is really antimatter or baryonic matter, some astronomers also believe that the expansion of the universe is not caused by dark energy, but the universe is expanding as a result of the big bang. Dark matter and dark energy are still mystifying theories in the 21st century. However with current the knowledge astronomers have obtained by observing the effects dark matter and dark energy have upon the universe, many astronomers conclude that if our universe was void of dark matter and dark energy, the universe would have never been.
The public formation of the Great Debate influenced the ways ideas were presented and it ultimately lead to the trajectory of the Debate. This paper argues why Shapley believed that there is only one Galaxy and how Edwin Hubble proved him wrong with his discovery of the expanding Universe. From this discovery, we came to realize that at some point in the past, our Universe was very small, probably a tiny dot, then after the Big Bang, it started expanding. This was a big discovery, which changed the history of Physics. At the end, the paper also discusses - if our Universe will continue to expand or is there a limit?
The Origin of the Universe Since the dawn of intelligent man, humanity has speculated about the origins of the universe. There is evidence, which indicates that the universe started around 15 billion years ago. This is probably the greatest discovery imaginable; however, the universe still seems to be a very controversial subject. Most scientists agree that there was a beginning but there is a lot of speculation of how it (the universe) actually started. The much-celebrated Greek philosopher, Aristotle, denied the fact that there ever was a beginning.