Study Guide 3-2 Milky Way Universe Exploration Format: Multiple Choice, True & False, Identification, Matching Milky Way -What, Where, When? -Definition, Viewpoint -Size, Structure -Movements -Stars - What, How? - Size, Distance - Color, Spectra - Life and Death - Stages, Nebulae - Grouping (Actual & Functional) - Neighbors - Constellations, Clusters - Magnitudes - H-R Diagrams - Positioning and Motion - Parallax - Earth’s Rotation - Doppler Effect Universe -History, Defined, Origins -Composition, Studying -Size, Age, Evidence -Spacing, Distances -Organizations, Neighbors -Galaxies - Types, Characteristics - Examples -ET Life?, Drake Equation Exploration -Why, When, How, Who? -Milestones, Examples -Trends, Significance -SETI, Hubble