Introduction to Astronomy: Crash Course Astronomy #1
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Introduction to Astronomy: Crash Course Astronomy #1
Welcome 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?" Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster -- Chapters ...
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