This unit focuses on the students examining the evidence and models that support scientists' understanding of the universe. They will uncover how celestial bodies formed and continue to form, understand our origins, and discover how other systems might be able to support life. They will compare and contrast objects in our solar system, describe how technology is used to photograph and provide information about objects in space, explain the importance of gravity, and classify stars based on their characteristics.Finally, they will learn the theory behind the formation of the universe and apply scientific notation to describe the vastness of the universe.