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. -- Why the Moon Has Phases 0:36.1 Spheres in Orbit 1:05.4 Name of the Moon Phases 2:25.5 How We See It 7:48.2 -- 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: