Big+Bang+-+MD

Getting Started

 * **Click on the edit button above to put your own content on this page.**

Rubric: [[file:Space Exploration Adventure Rubric.doc]], [[file:Space Exploration Adventure Rubric.pdf]]

 * Written Information **: As you enter text, the area will expand. Make sure to check the required details of the assignment and review the rubric (see document links) to self-assess your work. Your paragraphs will be in block format, enter one return between paragraphs. The tab key, indent feature will not appear when typing directly into the wiki page.

Visuals Make sure to include the location of your image; add a caption with this information


 * [[image:http://imgsrc.hubblesite.org/hu/db/images/hs-1994-02-c-web.jpg width="240" height="240" caption="The Universe"]] || [[image:http://callisto.ggsrv.com/imgsrv/FastFetch/UBER1/00256654-T2 width="258" height="243" caption="Evolution of the Universe"]] || [[image:http://www.nasa.gov/images/content/101986main_image_feature_236_jw4.jpg width="229" height="284" align="center" caption="Hubble photo of galaxy"]] ||

**Works Cited** **Sources** : Include the source information for all of the magazine articles, reference sources (encyclopedias) and web site pages that were used to complete your project. The source information for encyclopedias may be found at th

e end or beginning of each entry in iCONN. When using periodicals, the publication information will be at the beginning or end of the article. This needs to be formatted for MLA standards. If it is not labeled 'Source Citation' it can be formatted appropriately by using EasyBib.com. You should use EasyBib for the web sites. The final Works Cited should be listed in alphabetical order by the first word of the source citation. "Milky Way." //Kids InfoBits Presents: Astronomy//. Gale, 2008. Reproduced in Kids InfoBits. Detroit: Gale, 2012. "The Milky Way." //WMAP's Universe//. NASA, 28 June 2010. Web. 06 Mar. 2012. . Vergano, Dan. "Galaxy Bracketed by Big Bubbles." //USA Today// 10 Nov. 2010: 05A. Web. 6 Mar. 2012.
 * Sample:**

"Big Bang." //World of Physics//. Gale, 2012. //Gale Science In Context//. Web. 6 Mar. 2012. "Big Bang." //Kids InfoBits Presents: Astronomy//. Gale, 2008. Reproduced in Kids InfoBits. Detroit: Gale, 2012. [] Zubry, Boris. "Big Bang & Co." //Advances in Natural Science// 3.1 (2010): 32+. //Gale Science In Context//. Web. 9 Mar. 2012. []
 * Your Source List:**

[] []

**Topic: Research Focus**
 * What is your topic? The Big Bang**
 * State the focus of your research: The Big Bang**

**Notes** Include notes, statistics and facts that you will use to write your final paper. You may want to label sections of your notes to help you be more organized as you write. As you take notes from a source, you should list the source citation in the Works Cited section above.

The Big Bang is the cosmic event theorized to have marked the origin of the universe. At that instant, all matter and energy in the entire physical universe (and the four dimensions of time and space ), were created from a state of enormous density, temperature , and pressure. Big Bang theory is the widely held set of scientific explanations relating to the primordial Big Bang. Cosmology is the study of the creation, evolution, present structure, and ultimate fate of the universe; the Big Bang theory is, at present, the central, unifying model that guides cosmology and modern astronomy. Three primary pieces of evidence support the Big Bang theory. Hubble's 1929 observation of the expanding universe provided the first confirmation that the Big Bang theory was possible. The abundance of light elements (such as hydrogen and helium) is consistent with the prediction that protons and neutrons would fuse in the first few minutes after the Big Bang. Lastly, the 1965 observation of the 2.7 K microwave background radiation by Arno Penzias and Robert Wilson from Bell Laboratories was a critical confirmation of Big Bang -based cosmological models. Subsequent data from satellites launched in 1989 and 2001 have supported this earlier observation. According to the Big Bang theory, billions of years ago the entire universe was inside a bubble. This bubble was thousands of times smaller than the head of a pin. It was very hot and dense inside the bubble. Then the bubble exploded. The universe was born.

At first the universe was smaller than a single atom. Then it began to cool and grow.

Energy from the explosion formed stable particles called protons and neutrons. There were the building blocks of the universe.

Over time the stars, planets, and galaxies were formed. The universe continued to grow. It is still growing today. The Big Bang theory is the most widely accepted theory about how the universe began. But not all scientists agree. Some believe that the universe is eternal and unchanging. This is called the static theory of the universe.

about 15 (some say 20) billion years ago an astonishing explosion of the finite matter squished into an infinite density under the highly intense pressure and the tremendous temperature started the development of the universe in which we live. This blast of the incredible proportions is widely known as the Big Bang and, as a result of it, universe has become what we know now but is still developing and changing Despite its successes, the Big Bang theory cannot explain the cause of the Big Bang itself. It also does not address such questions as why the universe is so uniform in a large-scale sense and why it is so non-uniform on smaller scales. For example, the BigBang theory fails to explain how the galaxies and stars came into existence. Many cosmologists suspect that inflation theory may provide the framework for explaining the large-scale uniformity of our universe and the origin of structure within it.

The universe encompasses everything in existence, from the smallest atom to the largest galaxy; since forming some 13.7 billion years ago in the Big Bang, it has been expanding and may be infinite in its scope. The part of the universe of which we have knowledge is called the observable universe, the region around Earth from which light has had time to reach us.

The American astronomer Edwin Hubble made the observations in 1925 and was the first to prove that the universe is expanding. He proved that there is a direct relationship between the speeds of distant galaxies and their distances from Earth. This is now known as Hubble’s Law.

One of the best know theories in cosmology is the Big Bang. This is the idea that our universe started out much hotter and denser than it is now and has been expanding since then.

The theory that suggests that the universe was formed from a single point in space during a cataclysmic explosion about 13.7 billion years ago. This is the current accepted theory for the origin of the universe and is supported by measurements of background radiation and the observed expansion of space.