6: Solar System Formation and Other Stellar Systems Last updated Save as PDF Page ID 64056 Lumen Learning Lumen Learning 6.1: Module Introduction 6.2: Our Solar System 6.3: The Nebular Theory 6.4: What is a Planet? 6.5: The Nebular Theory- Other Important Evidence 6.6: The Nebular Theory- Proplyds 6.7: Systems and Extrasolar Planets 6.8: The Discovery of Extrasolar Planets 6.9: The Kepler Mission 6.10: What We Have Learned about Stellar Systems and Extrasolar Planets? 6.11: The Circumstellar Habitable Zone 6.12: Some Interesting Exoplanets 6.13: Extrasolar Planets