Carl Sagan Videos: The Earth as a Planet (Part 2/6)

Name: Carl Sagan Videos: The Earth as a Planet (Part 2/6)
Uploaded: 2010-09-11T04:33:23+00:00
Duration: 592 s
Channel: Carl Sagan
Description: http://www.CarlSaganVideos.com Carl Sagan Planets Christmas Lectures: The Earth as a Planet (Part 2/6)

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http://www.CarlSaganVideos.com <br /><br />Carl Sagan Planets Christmas Lectures: The Earth as a Planet (Part 2/6)