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	Astronomy Unit 2 Vcast 01 Ancient Astronomers Part 1 (Eric Powers) View
	Astronomy Unit 2 Vcast 02 Ancient Astronomers Part 2 The Copernican Revolution (Eric Powers) View
	Astronomy Unit 3 Vcast 01 What is a Star (Eric Powers) View
	Astronomy Unit 2 Vcast 11 Space Junk (Eric Powers) View
	Astronomy Unit 2 Vcast 3 Galileo and the Telescope (Eric Powers) View
	Astronomy Unit 2 Vcast 09 Terrestrial (Eric Powers) View
	What Ancient Astronomers Knew about the (Jon Bergmann) View
	Astronomy Unit 2 Vcast 10 Jovian (Eric Powers) View
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	Astronomy: Unit 1: Vcast 2: Lunar Features and the Far-Side (Eric Powers) View