Cosmos poster
9.1/10 (845 votes)
#1

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.

9.0/10 (1053 votes)
#2

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.

9.0/10 (867 votes)
#3

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.

8.9/10 (977 votes)
#4

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.

8.9/10 (800 votes)
#5

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.

8.7/10 (727 votes)
#6

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.

8.6/10 (1127 votes)
#7

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.

8.6/10 (872 votes)
#8

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.

8.6/10 (707 votes)
#9

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.

8.5/10 (766 votes)
#10

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.

8.5/10 (689 votes)
#11

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.

8.3/10 (798 votes)
#12

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.

8.2/10 (490 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.

8.2/10 (490 votes)
#1

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.

8.3/10 (798 votes)
#2

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.

8.5/10 (766 votes)
#3

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.

8.5/10 (689 votes)
#4

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.

8.6/10 (1127 votes)
#5

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.

8.6/10 (872 votes)
#6

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.

8.6/10 (707 votes)
#7

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.

8.7/10 (727 votes)
#8

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.

8.9/10 (977 votes)
#9

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.

8.9/10 (800 votes)
#10

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.

9.0/10 (1053 votes)
#11

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.

9.0/10 (867 votes)
#12

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.

9.1/10 (845 votes)
#13

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.

8.6/10 (1127 votes)

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.

8.9/10 (977 votes)

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.

8.6/10 (872 votes)

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.

9.0/10 (1053 votes)

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.

8.3/10 (798 votes)

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.

8.5/10 (766 votes)

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.

9.0/10 (867 votes)

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.

8.9/10 (800 votes)

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.

9.1/10 (845 votes)

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.

8.6/10 (707 votes)

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.

8.7/10 (727 votes)

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.

8.5/10 (689 votes)

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.

8.2/10 (490 votes)

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.

Season Average Rating Episodes Best Episode Worst Episode
1 ★ 9.0 13
★ 9.4 Unafraid of the Dark
★ 8.7 Deeper, Deeper, Deeper Still
2 ★ 8.7 13
★ 9.1 Magic Without Lies
★ 8.2 Seven Wonders of The New World