Cosmology

Astronomers study the universe in order to find evidence that will shed light on some of the biggest questions out there, including: How did the universe begin? How big is it? How will it change over time? Cosmology is the study of the origins and development of the universe. In this topic, you will learn about the Big Bang, which is the name for the theory that scientists have about the beginnings of the universe. Also, you will learn how the universe continues to expand, and how scientists believe the universe may eventually end. There are still many things that scientists do not know about the universe and its origins. It is important to remember, however, that the theories you are taught today are based on generations of evidence, and scientists add to that body of evidence as they learn more about the universe every day.

Essential Questions

• What are the differences between the Big Bang Theory and the Steady State Theory?
• What are the three possible shapes of the universe?
• What evidence supports the Big Bang Theory?