The theories surrounding the origin of the universe are reviewed in this unit. It discusses many challenging concepts involved with these theories, and focuses particularly on the theory of the Big Bang.

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This lesson is part of the Athabasca University Astronomy 230: Northern Lights, Northern Skies course. In this lesson, you will learn how to define the study of cosmology, how to explain how the distance to a galaxy can be determined using Cepheid variables and red shift, how to state the estimated age of the universe, and how to discuss end of the universe scenarios.
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Unit 9 - Lesson 2: The Big Bang

by Athabasca University

This lesson is part of the Athabasca University Astronomy 230: Northern Lights, Northern Skies course. In this lesson, you will learn how to explain briefly the Big Bang theory, and how to describe the available evidence supporting the Big Bang theory.
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This lesson is part of the Athabasca University Astronomy 230: Northern Lights, Northern Skies course. In this lesson, you will learn how to describe some of the major problems in the theory of the Big Bang, and how to describe some of the alternative theories to the Big Bang.
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