Galaxies in the universe
[DOC File]The Universe and Galaxies
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The Universe & Galaxies . SOL 14. Fundamental Concepts and Skills Reading Many types of observations are needed to better understand our universe. Much of our information about our galaxy and the universe comes from ground-based observations, using optical and radar telescopes as …
There may be fewer galaxies in the universe than we thought | Scie…
Galaxies. A galaxy is a large group of stars, gas, planets, rock, and dust held together by gravity. There are . billions. of stars in galaxies, and . billions. of galaxies in the universe. Just like stars are grouped together in galaxies, galaxies are grouped together in clusters. What is a Cluster? A cluster is a group of similar items in a ...
[DOC File]Chapter 19: Stars, Galaxies, and the Universe
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The Universe and Galaxies. Glencoe Ch.26 Sec. 3: pages 831-835. Astronomy – I. What is the universe? - universe - sum of all _____ and energy that ever has, does, and ever will exist ( everything physical that exists in _____ and _____ - _____ – the study of how the universe began, what it is made of and how it. continues to evolve and change
[DOC File]The Universe & Galaxies
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The Big Bang theory states that the whole universe started from a single tiny point that expanded rapidly in an explosion about 13 Billion years ago and is still expanding today (like the surface of a balloon, all galaxies are moving apart from each other, there is no centre!).
[DOC File]Houston Independent School District / Houston ISD Homepage
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All galaxies move the same amount during the expansion of the universe. Nearby galaxies move more during the expansion of the universe. All galaxies appear to move away from each other during the expansion of the universe. Consider three widely separated galaxies in an expanding universe. Imagine that you are located in galaxy 1 and observe ...
[DOC File]Universe, Galaxies, Solar System
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Section 3: Galaxies. Objectives. Identify three types of galaxies. Describe the contents and characteristics of galaxies. Explain why looking at distant galaxies reveals what young galaxies looked like.. A galaxy is a collection of stars, dust, and gas held together by gravity. Types of Galaxies. Spiral Galaxies have a bulge at the center and ...
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