As of July 2026, Cosmos: A Personal Voyage Season 1 aired in 1980 with 13 episodes. Full episode guide and where to watch below.
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Cosmos: A Personal Voyage Season 1

1980 13 Episodes Documentary ⭐ 9/10

Cosmos: A Personal Voyage Season 1 is currently streaming on major platforms, and it treats its subject with more rigour than the format usually demands. The 1-season run is exactly the right length for what it is doing. 443 viewers have already rated it on TMDB — the kind of consensus that does not happen by accident. Worth watching in order, from the beginning — the cumulative effect is the point. There is no real reason to keep putting it off.

Cosmos: A Personal Voyage Season 1 arrived without much fanfare and built its audience the hard way — through word of mouth. Cosmos: A Personal Voyage Season 1 resists the urge to oversimplify a subject that deserves better. Season 1 of Cosmos: A Personal Voyage includes 13 episodes. It aired from September 1980 to December 1980. This season stars Carl Sagan. Carl Sagan leads a cast that brings real weight to the material. It was aired in 1980. What elevates Cosmos: A Personal Voyage Season 1 above most documentary work is a refusal to settle for the easy version of the story. This is the rare one where the reputation undersells the reality.

For viewers who want their entertainment to leave them with something, Cosmos: A Personal Voyage Season 1 delivers on both counts. It has built its own audience without needing a direct comparison. Best experienced as a single, sustained watch if your schedule allows. The subject drives every choice here, not the other way around. The kind of production you finish and immediately want to read more about.

📡 Where to Watch Cosmos: A Personal Voyage Season 1

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🎬 Cosmos: A Personal Voyage Season 1 — Episode Guide

E1
The Shores of the Cosmic Ocean
1980-09-28
At the beginning of this cosmic journey across space and time, Dr. Carl Sagan takes us to the edge of the universe aboard a spaceship of the imagination. Through beautiful special effects, we witness quasars, exploding galaxies, star clusters, supernovas and pulsars. Returning to our solar system, ...
E2
One Voice in the Cosmic Fugue
1980-10-05
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 imag...
E3
Harmony of the Worlds
1980-10-12
This episode is a historical re-creation of the life of Johannes Kepler, the last scientific astrologer, the first modern astronomer and the author of the first science fiction novel. Kepler provided the insight into how the moon and the planets move in their orbits and ultimately how to journey to...
E4
Heaven and Hell
1980-10-19
A descent through the hellish atmosphere of Venus to explore its broiling surface serves as a warning to our world about the possible consequences of the increasing greenhouse effect. Then Dr. Sagan leads us on a tour of our solar system to see how other heavenly bodies have suffered from various c...
E5
Blues for a Red Planet
1980-10-26
Is there life on Mars? Dr. Sagan takes viewers on a tour of the red planet first through the eyes of science fiction authors, and then through the unblinking eyes of two Viking spacecrafts that have sent thousands of pictures of the stunning Martian landscape back to Earth since 1976. Though based o...
E6
Travellers' Tales
1980-11-02
Dr. Sagan compares the exhilaration of 17th-century Dutch explorers who ventured in sailing ships halfway around our planet in their quest for wealth and knowledge to an inside view of the excitement around Voyager's expeditions to Jupiter and Saturn. The newly acquired treasures of our present gol...
E7
The Backbone of Night
1980-11-09
Humans once thought the stars were campfires in the sky and the Milky Way "the backbone of night." In this fascinating segment Dr. Sagan takes us back to ancient Greece, when the basic question "what are the stars?" was first asked. He visits the Brooklyn elementary school of his childhood, where t...
E8
Journeys in Space and Time
1980-11-16
A voyage to see how star patterns change over millions of years is followed by a journey to the planets of other stars, and a look at the possibility of time travel. This takes us to Italy, where a young Albert Einstein first wondered what it would be like to ride on a beam of light.
E9
The Lives of the Stars
1980-11-23
Using computer animation and amazing astronomical art, Dr. Sagan shows how stars are born, live, die and sometimes collapse to form neutron stars or black holes. We then journey into the future to witness "the last perfect day on Earth," 5 billion years from now, after which the sun will engulf our...
E10
The Edge of Forever
1980-11-30
Dr. Sagan leads us on some awesome trips — to a time when galaxies were beginning to form, to India to explore the infinite cycles of Hindu cosmology, and to show how humans of this century discovered the expanding universe and its origin in the big bang. He disappears down a black hole and reappea...
E11
The Persistence of Memory
1980-12-07
The brain is the focus of this fascinating portion of our journey as Dr. Sagan examines another of the intelligent creatures with whom we share the planet Earth — whales. Then we wind through the maze of the human brain to witness the architecture of thought. We see how genes, brains and books stor...
E12
Encyclopedia Galactica
1980-12-14
Are there alien intelligences? How could we communicate with them? What about UFOs? The answers to these questions take us to Egypt to decode ancient hieroglyphics, to the largest radio telescope on Earth and, in the Spaceship of the Imagination, to visit other civilizations in space. Dr. Sagan ans...
E13
Who Speaks for Earth?
1980-12-21
Through the use of special effects we retrace the 15-billion-year journey from the big bang to the present. We also hear the tragic story of the martyrdom of Hypatia, the woman scientist of ancient Alexandria. This is the famous episode on nuclear war in which Dr. Sagan argues that our responsibili...

🎭 Cast of Cosmos: A Personal Voyage Season 1

Carl Sagan
Carl Sagan
Self - Host

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