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Season guide

Cosmos: A Spacetime Odyssey

13 episodes Premiered Mar 9, 2014 Updated Jul 30, 2026

Cosmos is a documentary television series that features renowned astrophysicist Neil deGrasse Tyson. The series takes viewers on a journey through the cosmos, presenting scientific concepts clearly and exploring the infinite universe with a mix of skepticism and wonder.

Season overview

Cosmos is a documentary television series that features renowned astrophysicist Neil deGrasse Tyson. The series takes viewers on a journey through the cosmos, presenting scientific concepts clearly and exploring the infinite universe with a mix of skepticism and wonder.

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Episodes

S1·E1

Standing Up in the Milky Way

Mar 9, 2014 · 46 min

The Ship of the Imagination, unfettered by ordinary limits on speed and size, drawn by the music of cosmic harmonies, can take us anywhere in space and time. It has been idling for

S1·E2

Some of the Things that Molecules Do

Mar 16, 2014 · 44 min

Host Neil deGrasse Tyson is on a voyage to explore the relatedness of all living things and the possible evolution of life in the cosmos. Go on a journey to discover how artificial

S1·E3

When Knowledge Conquered Fear

Mar 23, 2014 · 46 min

There was a time, not so long ago, when natural events could only be understood as gestures of divine displeasure. We will witness the moment that all changed; but first, the Ship

S1·E4

A Sky Full of Ghosts

Mar 30, 2014 · 44 min

An exploration of how light, time and gravity combine to distort our perceptions of the universe. We eavesdrop on a series of walks along a beach on summer nights in the year 1809.

S1·E5

Hiding in the Light

Apr 6, 2014 · 46 min

The Ship of the Imagination travels back in time to reveal 11th century Europe and North Africa during the golden age of Islam, when brilliant physicist Ibn al-Haytham discovered t

S1·E6

Deeper, Deeper, Deeper Still

Apr 13, 2014 · 46 min

The Ship of the Imagination ventures on an epic voyage to the bottom of a dewdrop to explore the universe on the smallest scale and observe exotic life forms invisible to the naked

S1·E7

The Clean Room

Apr 20, 2014 · 44 min

To determine the true age of the Earth, geochemist Clair Patterson developed the uranium-lead dating method to make an unprecedented discovery – calculating Earth's age of 4.5 bill

S1·E8

Sisters of the Sun

Apr 27, 2014 · 43 min

Discover the remarkable story of Annie Jump Cannon and Cecilia Payne, two incredible women who challenged conventional wisdom and uncovered the real-life story of the stars. Cannon

S1·E9

The Lost Worlds of Planet Earth

May 4, 2014 · 44 min

The Ship of the Imagination embarks on a journey through space and time to grasp how the autobiography of the Earth is written in its atoms, its oceans, its continents and all livi

S1·E10

The Electric Boy

May 11, 2014 · 43 min

Travel to 19th century England and meet Michael Faraday, a child of poverty who grew up to invent the motor and the generator. His ideas about electricity and discovery of magnetic

S1·E11

The Immortals

May 18, 2014 · 45 min

The Ship of the Imagination travels across the cosmos to discover the possibility of beings that live forever and explain why other civilizations perish. Then, visit the Cosmic Cal

S1·E12

The World Set Free

Jun 1, 2014 · 41 min

The Ship of the Imagination travels to our near neighbor Venus, where we begin our journey to discover the long history of global warming and the greenhouse effect. Later, explore

S1·E13

Unafraid of the Dark

Jun 8, 2014 · 46 min

The Ship of the Imagination makes a final journey to explore one of the biggest mysteries of the universe: dark energy. Meet one of science's greatest unsung heroes, Fritz Zwicky,