10: The Sun Last updated Nov 20, 2024 Save as PDF 9.21: Eris 10.1: Module Introduction Page ID64060 Lumen LearningLumen Learning ( \newcommand{\kernel}{\mathrm{null}\,}\) 10.1: Module Introduction10.2: What do you think?10.3: Fission and Fusion10.4: Our Star, the Sun10.5: How the Sun Works10.6: A “Quick Guide” to Solar Fusion—The Proton-Proton Cycle10.7: Solar Regions10.8: Major Solar Features10.9: Studying the Sun10.10: The Dark Side of the Sun10.11: The National Solar Observatory10.12: NASA’s Heliophysics Science Division