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Watch Cosmos: A Personal Voyage Season 1 Episode 2 Online

  • 8.4/10
  • COUNTRIES: United Kingdom,United States of America
  • Subtitles: English

Dr. Sagan's cosmic calendar makes the history of the universe understandable and frames the origin of the Earth and the evolution of life. We see the evolutionary process unfold, from microbes to humans. Our understanding of how life developed on Earth enables us to venture to other worlds for imaginative speculations on what forms life might take elsewhere.