E1.
Introduction to AstronomyWelcome to the first episode of Crash Course Astronomy. Your host for this intergalactic adventure is the Bad Astronomer himself, Phil Plait. We begin with answering a question: "What is astronomy?"
E2.
Naked Eye ObservationsPhil invites you to head outside and take a look at all the incredible things you can see with your naked eye.
E3.
Cycles in the SkyThis week we build on our naked eye observations from last week and take a look at the cyclical phenomena that we can see at work in the universe.
E4.
Moon PhasesIn this episode of Crash Course Astronomy, Phil takes you through the cause and name of the Moon's phases.
E5.
EclipsesThe big question in the comments last week was, "BUT WHAT ABOUT ECLIPSES?" Today, Phil breaks 'em down for you.