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    Galaxies in Our Universe

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    Universe is a collection of millions of galaxies and extends beyond human imagination. After the big bang, the universe was found to be composed of radiation and subatomic particles. Information following big bang is arguable on how galaxies formed, that is whether small particles merged to form clusters and eventually galaxies or whether the universe systematized as immense clumps of matter that later fragmented into galaxies (Nasa World book, 2013). A galaxy is a massive area of empty space full

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    Galaxies Essay

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    Galaxies are large groups of stars, dust, and gas. Galaxies contain planets, star system and clusters, and interstellar clouds. In between these objects, there’s a sparse interstellar medium of gas, dust, and cosmic rays. There are supermassive black holes located at the center of most galaxies. Supermassive black holes are the largest type of black hole. Galaxies that have less than a billion stars are considered “small galaxies”. Galaxies are categorized according to their shape. There are three

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    The Andromeda Galaxy

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    Group of galaxies. The Andromeda galaxy is the closest full size galaxy to the Milky Way. The Andromeda Galaxy is about four times bigger than the moon in the sky. Andromeda contains around one trillion stars. The Andromeda Galaxy is also the only galaxy noticeable to the naked eye in the Northern Hemisphere. The Andromeda Galaxy is the Milky Way's larget galactic acquaintance and is on course for a collision in the fututre. It is believe that the Milky Way Galaxy and the Andromeda Galaxy, also known

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    The Merging of Galaxies

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    A dwarf galaxy is, “a small galaxy composed of up to several billion stars—a smaller amount compared to our own Milky Way’s Galaxy’s 200-400 billion stars” (Wikipedia). On February 23, 2014, it was reported that two galaxies that had once orbited around the Andromeda Galaxy were merging together. The collision created a stream of stars in one of Andromeda’s dwarf galaxies, Andromeda II. Researchers then observed the stream of stars by separating them into categories and trying to analyze which could

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    Quasars and Active Galaxies

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    Quasars and Active Galaxies The astronomical world is full of phenomena beyond the average person’s imagination. The technical tools and analytical methods astronomers use are very complex. The enormous numbers and distances are mind boggling. Theories behind astronomical phenomena are based on yet another theory. In order to understand the concept of quasars and active galaxies, one must first have a feel for the astronomical numbers involved. Secondly, a basic knowledge of the tools of the

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    Essay On Galaxies

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    night and wondered how the stars and galaxies came to be? This paper will tell you about those small pinpricks of light in the sky. It will explain the great discoveries that astronomers like Galileo, Newton, and Hubble made. This paper will tell you everything about the stars and galaxies. A galaxy is a system of millions or billions, maybe even trillions of stars that are composed with gas and dust, which is held together by gravitational attraction. Galaxies have been categorized throughout history

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    The Milky Way Galaxy

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    system of millions in a galaxy of many more in the universe. A galaxy, also called a nebula, consists of billions of stars, interstellar gas, dust, and dark matter which are all bound to form a massive cloud in which we live in. Although it cannot be very well explained, dark matter makes up at least 90% of a galaxy’s mass. Galaxies also contain billions upon billions of stars and their diameter can range from 1,500 to 300,000 light years. That’s huge! The Milky Way, the galaxy in which we live in

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    Introduction At the beginning of the course we were asked to choose a “Cosmic Target”, which is something in space that we wanted to know more about. I chose the Milky Way Galaxy as a single unit. I wanted to know why it was, what it was and where it was going. All of us of course know where the Milky Way is, it is our home. A part of our cosmic address, and up until recently it was the biggest thing that we could imagine. As far as where it is in the universe, it is in The Local group, which is

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    Future of Our Galaxy Galactic Millenium What Does the Future Hold? (adopted from an article by Greg Laughlin and Fred Adams, "Celebrating the Galactic Millennium", Astronomy November 2001) Not too long ago, we were looking forward to the New Millennium. To many of us, this was an important event of our lives. On a larger scale, however, the New Millennium looks insignificant. "If we adopt an astronomical perspective, however, a much larger and more distant celebration remains on the schedule-the

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    The Andromeda Galaxy and Her Brightest Star

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    The Andromeda galaxy can be found to the north of the constellation bearing its name and appears as a “long, hazy patch” (Redd, 2012) in the sky with a visible fuzzy patch of stars stretching about “as long as the width of the full moon, half as wide and six times that length in fullness. This galaxy contains a concentrated bulge of matter in the middle, surrounded by a disk of gas, dust, and stars 260,000 light-years long, more than 2.5 times as long as the Milky Way” (Redd, 2012) containing approximately

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