The Cosmos: A Spacetime Odyssey episodes shown here are available by hulu to US users on desktop computers. You can watch episodes on mobile devices using the FOX NOW App [iOS] [Android]. Check the Cosmos: A Spacetime Odyssey website or @COSMOSonTV for more information and updates. There are some relevant resources below each video including students guides and a liveblog by real scientists during each episode. Reddit/r/cosmos has a very active general discussion about the series. Also check the official Cosmos App [iOS] [Android]. Enjoy the cosmos!

UPDATE: Cosmos is now only available on NetFlix. The Hulu links below do not work.


Episode 13: Unafraid of the Dark

Resources: Student guide.


Episode 12: The World Set Free

Resources: Student guide.

Episode 11: The Immortals

Resources: Student guide.

Episode 10: The Electric Boy

Resources: Student guide.

Episode 9: The Lost Worlds of Planet Earth

Resources: Student guide. Relevant PHL content: Earth: Evolution of a Habitable Planet.

Episode 8: Sisters of the Sun


Episode 7: The Clean Room


Episode 6: Deeper Deeper Deeper Still

Resources: Student guide.

Episode 5: Hiding in the Light


Episode 4: A Sky Full of Ghosts


Episode 3: When Knowledge Conquered Fear


Episode 2: Some of the Things That Molecules Do

Resources: Student guide. Liveblog by Pale Blue Blog. Relevant PHL content: Earth: Evolution of a Habitable Planet.

Episode 1: Standing Up in the Milky Way