Moon Phases: Crash Course Astronomy #4

In this episode of Crash Course Astronomy, Phil takes you through the cause and name of the Moon's phases. Check out the Crash Course Astronomy solar system poster here: -- Chapters: Why does the Moon Have Phases? 00:00 New Moon 2:26 Waxing Crescent 4:17 First Quarter 4:35 Waxing Gibbous 5:15 Full Moon 5:32 Waning Gibbous, Third Quarter, and Waning Crescent 6:26 Earthshine 7:20 Review 8:58 -- PBS Digital Studios: Follow Phil on Twitter: Crash Course is on Patreon! You can support us directly by signing up at Want to find Crash Course elsewhere on the internet? Facebook - Twitter - Instagram - CC Kids: -- PHOTOS #mediaviewer/File: #mediaviewer/File: :Sachin_Nigam_-_starry_moon_(by-sa).jpg