Concept 1: Consider how astronomers measure and classify the distance, brightness, temperature, mass, and size of stars.
Concept 2: Describe interstellar material and the different types of nebulae.
Concept 3: List several possibilities describing stellar evolution including the life and death of stars.
Concept 4: List and describe the major types of galaxies.
Concept 5: Consider the evidence supporting an expanding universe and describe the Big Bang theory.
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