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01-16-2015, 01:16 PM
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Introduction to Astro**my: Crash Course Astro**my #1
 Introduction to Astro**my: Crash Course Astro**my #1 Welcome to the first episode of Crash Course Astro**my. Your host for this intergalactic adventure is the Bad Astro**mer himself, Phil Plait. We begin with answering a question: "What is astro**my?... From: CrashCourse Views: 62206   Time: 12:12 More in Education أكثر... ??????? ??????: Introduction to Astro**my: Crash Course Astro**my #1 || ??????: ahlam1399 || ??????: اسم منتداك
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