A comprehensive 52-slide PPT product (with student notes) that introduces all major topics in a typical middle school / early high school unit on advanced astronomy (cosmology), including the Sun, stars, galaxies, universe, and Big Bang Theory. Topics include: what are stars, our Sun, classification of stars (color, temperature, size, brightness, distance), Hertzprung-Russell diagram, life cycle of stars, types of stars (red giants, white dwarfs, etc.), supernovas, black holes, types of galaxie