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  1. With Carl Sagan, Jonathan Fahn, Jaromír Hanzlík, Ronald A. Hilbert. Carl Sagan considers the significance of science and discuss the importance of human survival in the nuclear age.

    • (530)
    • 1980-12-21
    • Documentary
    • 60
  2. Who speaks for Earth? From an extraterrestrial perspective, our global civilization is clearly on the edge of failure in the most important task it faces: preserving the lives and well-being of its citizens and the future habitability of the planet.

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    • Cosmos Update

    Who Speaks for Earth? is the thirteenth and final episode of Cosmos A Personal Voyage. It first aired 21 December 1980 on PBS.

    Carl Sagan reflects on the future of humanity and the question of "who speaks for Earth?" when meeting extraterrestrials. He discusses the very different meetings of the Tlingit people and explorer Jean-François de La Pérouse with the destruction of the Aztecs by Spanish conquistadors, the looming threat of nuclear warfare, and the threats shown by...

    The preliminary reconnaissance of planets with spacecraft, the fall of the Berlin Wall, the end of apartheid in South Africa, and measures towards the reduction of nuclear weapons are discussed.

  3. Nov 6, 2015 · In Who Speaks for Earth?, the final episode of the original Cosmos, Carl Sagan describes a recurring dream, in which he is exploring the galaxy on a mission ...

  4. Jul 7, 2021 · Carl Sagan - CosmosWho Speaks for Earth?Season 1 Episode 13Original US Air Date: 21 December 1980https://www.imdb.com/title/tt0760465/?ref_=ttep_ep13Main Son...

    • 5 min
    • 180
    • Whisper555
  5. May 21, 2014 · Excerpted from "Cosmos" Episode 13 "Who Speaks for Earth" "The global balance of terror, pioneered by the United States and the Soviet Union, holds hostage all the citizens of the earth.

    • 4 min
    • 14.4K
    • Red Primary
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  7. We are one planet. One of the great revelations of the age of space exploration is the image of the earth finite and lonely, somehow vulnerable, bearing the entire human species through the oceans of space and time. Carl Sagan - Host : We are a way for the cosmos to know itself.

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