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The Best Episodes of Cosmos Season 2

Every episode of Cosmos Season 2 ranked from best to worst. Discover the Best Episodes of Cosmos Season 2!

Binge this in 9h 19m•Peaking at 8.4/10

Famed astrophysicist Neil deGrasse Tyson provides clarity for the vision of the cosmos as he voyages across the universe with never-before-told stories that delve into the scientific concepts of the laws of gravity and the

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Episode Rankings

  1. #1 Fan Favorite
    Cosmos Season 2 Episode 1 - Ladder to the Stars
    8.2/10(13 votes)

    #1 - Ladder to the Stars

    S2:E1

    An adventure spanning billions of years into the evolution of life and consciousness. A visit to a 100,000-year-old laboratory. The story of the change in life-style that radically altered human existence and the life of the heretic who found god in the book of nature, opening our way to the stars.

    Director:Brannon Braga
    Writer:Ann Druyan

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  2. Cosmos Season 2 Episode 2 - The Fleeting Grace of the Habitable Zone
    8.2/10(12 votes)

    #2 - The Fleeting Grace of the Habitable Zone

    S2:E2

    There is no refuge from change in the cosmos. There will come a time in the life of the Sun when Earth will no longer be a home for us. The story of our ancestors who rose to a comparable challenge and a long-term vision of our future on other worlds.

    Director:Ann Druyan
    Writers:Ann Druyan, Brannon Braga

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  3. Cosmos Season 2 Episode 3 - Lost City of Life
    7.8/10(9 votes)

    #3 - Lost City of Life

    S2:E3

    A new vision of genesis at the bottom of the blood red sea of the infant Earth. And the story of the man who found the first clues to life's beginning in a green jewel. As he searched for life's origin, he risked his own, daring to toy with his Nazi tormentors.

    Director:Brannon Braga
    Writers:Ann Druyan, Brannon Braga

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  4. Cosmos Season 2 Episode 4 - Vavilov
    8.4/10(11 votes)

    #4 - Vavilov

    S2:E4

    In the first half of the 20th century pioneering geneticist Nikolai Vavilov traveled 5 continents assembling a treasury of the worlds seeds. He dreamed that science could be the means to end hunger. His refusal to tell a scientific lie cost him his life. The heroism of his colleagues and its direct impact on your life is one of the most stirring stories in the history of science.

    Director:Ann Druyan
    Writers:Ann Druyan, Brannon Braga

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  5. Cosmos Season 2 Episode 5 - The Cosmic Connectome
    7.6/10(9 votes)

    #5 - The Cosmic Connectome

    S2:E5

    A voyage of discovery through the evolution of consciousness with stops in ancient Greece, a visit to the largest life form on Earth, into the poignant dream of an abandoned orphan that opened the way to our understanding of the architecture of thought and beyond to a vision of a galactic network of thought.

    Director:Ann Druyan
    Writers:Ann Druyan, Brannon Braga

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  6. Cosmos Season 2 Episode 6 - The Man of a Trillion Worlds
    7.8/10(9 votes)

    #6 - The Man of a Trillion Worlds

    S2:E6

    A child lies on the rug of a tenement dreaming of interstellar adventures. At the dawn of the space age, a young Carl Sagan's career is forged in the clash of his mentors, two scientific titans. Sagan goes on realize his childhood dreams, to carry their research forward and communicate its significance to the whole world.

    Director:Ann Druyan
    Writers:Ann Druyan, Brannon Braga, André Bormanis

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  7. Cosmos Season 2 Episode 7 - The Search for Intelligent Life on Earth
    8.2/10(9 votes)

    #7 - The Search for Intelligent Life on Earth

    S2:E7

    A revelation of the hidden underground network that is a collaboration of four kingdoms of life, and a true first contact story between humans and beings who communicate in a symbolic language and have maintained a representative democracy for many tens of millions of years.

    Director:Brannon Braga
    Writers:Ann Druyan, Brannon Braga

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  8. Cosmos Season 2 Episode 8 - The Sacrifice of Cassini
    8.4/10(9 votes)

    #8 - The Sacrifice of Cassini

    S2:E8

    The mysterious untold story of the scientist who figured out how to go the Moon while fighting for his life in a WWI trench. He wrote a letter to fifty years in the future. It made the Apollo Mission possible. And the saga of the twenty-year long odyssey of a robotic explorer ordered to commit suicide on another world.

    Director:Ann Druyan
    Writers:Ann Druyan, Brannon Braga

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  9. Cosmos Season 2 Episode 9 - Magic Without Lies
    8.2/10(8 votes)

    #9 - Magic Without Lies

    S2:E9

    Meet the man who stumbled on a hole in the reality of quantum mechanics and the still-unfolding technology that made it possible.

    Director:Brannon Braga
    Writers:Ann Druyan, Brannon Braga

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  10. Cosmos Season 2 Episode 10 - A Tale of Two Atoms
    8.1/10(8 votes)

    #10 - A Tale of Two Atoms

    S2:E10

    How a deadly embrace between science and state altered the fate of the world, and a gripping cautionary tale of mass casualty and unlikely survival.

    Director:Brannon Braga
    Writers:Ann Druyan, Brannon Braga

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  11. Cosmos Season 2 Episode 11 - Shadows of Forgotten Ancestors
    7.9/10(8 votes)

    #11 - Shadows of Forgotten Ancestors

    S2:E11

    An exploration of human potential for change, concluding with the story of one of history's greatest monster and his virtuous transformation.

    Director:Brannon Braga
    Writers:Ann Druyan, Brannon Braga

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  12. Cosmos Season 2 Episode 12 - Coming of Age In The Anthropocene
    7.9/10(9 votes)

    #12 - Coming of Age In The Anthropocene

    S2:E12

    A baby is born on the day the show premieres. What kind of world can she expect to grow up in? One of her possible futures is explored.

    Director:Ann Druyan
    Writers:Ann Druyan, Brannon Braga

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  13. Cosmos Season 2 Episode 13 - Seven Wonders of The New World
    6.9/10(9 votes)

    #13 - Seven Wonders of The New World

    S2:E13

    Take a trip to the 2039 New York World’s Fair, where the problems we now consider hopeless have been solved and thrilling possibilities exist.

    Director:Brannon Braga
    Writer:Ann Druyan

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Season 2 Ratings Summary

"Ladder to the Stars" is the best rated episode of "Cosmos" season 2. It scored 8.2/10 based on 13 votes. Directed by Brannon Braga and written by Ann Druyan, it aired on 3/9/2020. This episode is rated 0.0 points higher than the second-best, "The Fleeting Grace of the Habitable Zone".