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Cosmos Carl Sagan: The Shores of the Cosmic Ocean

   1980    Science
Carl Sagan opens the program with a description of the cosmos and the Spaceship of the Imagination. The ship journeys through the universe's hundred billion galaxies, the Local Group, the Andromeda Galaxy, the Milky Way, the Orion Nebula, our Solar System, and finally the planet Earth. Eratosthenes' successful calculation of the circumference of Earth leads to a description of the ancient Library of Alexandria. Finally, the Ages of Science are described, before pulling back to the full span of the Cosmic Calendar.
Series: Cosmos

Who Speaks for Earth

   1980    Culture
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-Fran├žois de La Perouse with the destruction of the Aztecs by Spanish conquistadors, the looming threat of nuclear warfare, and the threats shown by destruction of the Library of Alexandria and the murder of Hypatia. The episode ends with an overview of the beginning of the universe, the evolution of life, and the accomplishments of humanity and makes a plea to mankind to cherish life and continue its journey in the cosmos. The Cosmos Update notes the preliminary reconnaissance of planets with spacecraft, the fall of the Berlin Wall and the end of apartheid in South Africa, and measures towards the reduction of nuclear weapons.
Series: Cosmos

The Truth About
The Truth About

   2018    Medicine
Minimalists
Minimalists

   2021    Culture
Out of the Cradle
Out of the Cradle

   2019    History
Top Gear
Top Gear

   2012    Technology
Human Planet
Human Planet

   2011    Culture
Cosmos: A Spacetime Odyssey
Cosmos: A Spacetime Odyssey

   2014    Science
Space Deepest Secrets
Space Deepest Secrets

   2020    Science
Lost Kingdoms of South America
Lost Kingdoms of South America

   2013    History