Cosmos: A Spacetime Odyssey
Season 2 Episode 13 - Unafraid of the Dark
The Ship of Imagination makes a journey to meet Fritz Zwicky, whose observations of supernovas helped scientists to better understand dark energy, one of the biggest mysterious explanations for the expansion of the universe; 'The Pale Blue Dot.'
Audio Languages: English - Audio Description
Subtitles: English
Season 2
S02:E01 - Standing Up in the Milky Way
A thrilling, new adventure across space and time begins.
S02:E02 - Some of the Things Molecules Do
Artificial selection is one example, eyes another, of the well-documented and inescapable process of evolution, by natural selection.
S02:E03 - When Knowledge Conquered Fear
Tyson sets off on the Ship of the Imagination to chase a single comet through its million-year plunge toward Sol.
S02:E04 - A Sky Full of Ghosts
Explore how light, time, and gravity affect our perception of the universe.
S02:E05 - Hiding in the Light
William Herschel discovers the infrared and the signature hidden in the light of every star, eventually unlocking one of the keys to the cosmos.
S02:E06 - Deeper Deeper Deeper Still
Venture on a voyage to the bottom of a dewdrop to explore the universe on the smallest scale and observe exotic life forms invisible to the naked eye.
S02:E07 - The Clean Room
To determine the true age of the Earth, geochemist Clair Patterson developed the uranium-lead dating method to make an unprecedented discovery.
S02:E08 - Sisters of the Sun
Explore the violent cosmic phenomenon of supernovas, which on average occur one billion times per year in the observable universe.
S02:E09 - The Lost Worlds of Planet Earth
The autobiography of the Earth is written in its atoms, its oceans, its continents, and all living things.
S02:E10 - The Electric Boy
Travel to 19th century England and meet Michael Faraday, a child of poverty who grew up to invent the motor and the generator.
S02:E11 - The Immortals
The Ship of the Imagination takes a journey across the cosmos to explore the potential of life forms surviving eternally; the Cosmic Calendar of the Future holds the answers to events which lie ahead in a prospective vision of the galaxy.
S02:E12 - The World Set Free
The Ship of Imagination travels all the way to Venus to explore the greenhouse effect, the history of global warming, the results of climate change and the impact that humans have on the Earth's atmosphere.
S02:E13 - Unafraid of the Dark
The Ship of Imagination makes a journey to meet Fritz Zwicky, whose observations of supernovas helped scientists to better understand dark energy, one of the biggest mysterious explanations for the expansion of the universe; 'The Pale Blue Dot.'
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