Welcome to the Universe - III: The Size of Things

Part III: The Size of Things In this episode, we take a brief trip through the Solar System and beyond to see the size of the Universe. Follow me on Twitter. www.twitter.com Become a fan at the WttU Facebook page! www.facebook.com Learn about the International Year of Astronomy 2009: www.astronomy2009.org **** How you can help spread this video **** You can download this video in HD at the following link is.gd Click 'Free Download' half way down the page and wait for the link to appear ...



http://www.youtube.com/watch?v=N_RqlTi6wGY&hl=en

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