Cosmos: Possible Worlds Episode Rating Graph

An adventure spanning billions of years into the evolution of life.

A long-term vision of humanity's future worlds is explored.

Explore the story behind the man who found the first clues to life's beginnings on Earth.

Nikolai Vavilov risked his life for a discovery that would change the history of science.

An abandoned orphan's dream opens the way to understanding the architecture of thought.

A young Carl Sagan realizes his childhood dreams, carrying his mentors' research forward.

A hidden underground network, a collaboration of four kingdoms of life, is revealed.

A scientist figures out how to go to the moon while fighting for his life in a war trench.

Spotlighting the man who discovered a hole in reality and the technology that it made possible.

Examining how a deadly embrace between two atoms altered the fate of the world.

An exploration into the similarities and differences of humans and animals.

Following the greatest stories of prophecy, a possible future for a newborn is depicted.

A visit to the 2039 New York World's Fair, where intractable problems may have been solved.