Known galaxies in the universe
[DOCX File]Chapter 1 The runaway galaxies
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Therefore, if galaxies have been moving at the same speed throughout all of the universe’s history, we can figure out when any two galaxies were at the same place. This time, when all galaxies (and, in fact, everything in the known universe) were at the same location is called the “Big Bang.”
[DOCX File]What Is a Galaxy?
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What percent spiral galaxies? 19: What type of galaxies account for an estimated 60 percent of all galaxies? 20: Describe the shape of an elliptical galaxy. 21: How large, and what type, are the largest known galaxies we have found so far? 22: What percentage of galaxies in the universe …
[DOC File]THE EXPANDING UNIVERSE
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Only _____ of the known galaxies have irregular shapes and are classified as irregular galaxies. In addition to shape and size, one of the major differences among different types of galaxies is the age of their stars. ... The _____ of distant galaxies indicate that the universe is _____. To help visualize the nature of the universe, imagine a ...
[DOC File]Chapter 1: A Universe of Life
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Hence a universe filled with enough neutrinos could give rise to the density fluctuations necessary for the formation of galaxies; this theory became known as the hot dark matter model of galaxy formation.
[DOC File]1: What are galaxies
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The great debate: a universe with many galaxies? During the 18th and 19th centuries, it became clear that our sun is indeed one star in a great galaxy of stars across the sky known as the Milky Way. However, astronomers did not just observe stars and planets through their telescopes; fuzzy clouds of light known as the . distant nebulae
Top 12 Largest Galaxies In The Universe | Trendrr
Types of Galaxies. Spiral Galaxies have a bulge at the center and spiral arms. The Milky Way Astronomers think that our solar system is in a spiral galaxy. Elliptical Galaxies About one-third of all galaxies are simply massive blobs of stars. These are called elliptical galaxies.
[DOC File]Chapter 25: Beyond Our Solar System
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A) Galaxies with intensely bright, compact cores less than a few LY across. B) Small irregular galaxies that are companions to our Milky Way galaxy. C) Galactic cannibals. D) Galaxies with intense, unsustainable amounts of star formation. E) Pairs of galaxies colliding with each other 6.07. The biggest known structures in our Universe are
[DOC File]Chapter 19: Stars, Galaxies, and the Universe
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Galaxies that emit great amounts of energy from a small core are known as active galaxies. Active galaxies that emit much energy at radio wavelengths are radio galaxies. Very distant, extremely bright, radio-energy emitters are quasars (quasi-stellar radio source). ... Cosmology is the study of the structure and the evolution of the universe as ...
[DOCX File]Chapter 1 The runaway galaxies - Life in a puzzling universe
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11. The Magellanic Clouds are known for certain as: a) Small irregular galaxies that move in orbit around our Milky Way. b) Regions of active star formation in the outer halo of the Milky Way. c) Hazy patches of nebulae visible from Earth's Northern Hemisphere. d) Dark clouds of dust that are known …
[DOCX File]Galaxies - Weebly
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The remaining 3 percent of the galaxies in the universe are known as irregular galaxies. They are neither round, nor contain spiral arms. Irregular galaxies, as their name suggests, are irregular in shape. The gravity of other galaxies has often affected them, stretching them out or warping them.
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