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Home / Series / Sixty Symbols / Aired Order / Season 2010 / Episode 17

Earth - Sixty Symbols

Why does a professor of astronomy find Earth the hardest planet to talk about? More videos at http://www.sixtysymbols.com/

English
  • Originally Aired May 6, 2010
  • Created September 24, 2021 by
    TVDB-Editor123
  • Modified September 24, 2021 by
    TVDB-Editor123