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When Whales Could Walk

When Whales Could Walk

Season 51 Episode 1
53:31
Easter Island Origins

Easter Island Origins

Season 51 Episode 2
53:17
Building the Eiffel Tower

Building the Eiffel Tower

Season 51 Episode 3
53:15
Hunt for the Oldest DNA

Hunt for the Oldest DNA

Season 51 Episode 4
53:10
A.I. Revolution

A.I. Revolution

Season 51 Episode 5
53:30
Great American Eclipse

Great American Eclipse

Season 51 Episode 6
53:34
Secrets in Your Data

Secrets in Your Data

Season 51 Episode 7
53:40
Decoding the Universe: Cosmos

Decoding the Universe: Cosmos

Season 51 Episode 8
53:38
Solar System: Storm Worlds

Solar System: Storm Worlds

Season 51 Episode 9
53:34
Solar System: Strange Worlds

Solar System: Strange Worlds

Season 51 Episode 10
53:34
Solar System: Volcano Worlds

Solar System: Volcano Worlds

Season 51 Episode 11
53:34
Solar System: Icy Worlds

Solar System: Icy Worlds

Season 51 Episode 12
53:34
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NOVA

Lee and Liza's Family Tree

Season 50 Episode 18

With the help of scientists and genealogists, filmmaker Byron Hurt and his family members search for their ancestors. Follow their journey as they hunt for new details of a history long obscured by the enduring legacy of slavery.

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Ancient Earth: Frozen
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53:46
Season 50 Episode 12
Ancient Earth: Frozen
How did life survive on a planet covered in ice from pole to pole?
Ancient Earth: Birth of the Sky
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53:47
Season 50 Episode 11
Ancient Earth: Birth of the Sky
See how Earth transformed from a barren hellscape to a planet capable of sustaining life.
Your Brain: Who's in Control?
53:31
Season 50 Episode 10
Your Brain: Who's in Control?
Dive into the subconscious to see what’s really driving the decisions you make.
Your Brain: Perception Deception
53:30
Season 50 Episode 9
Your Brain: Perception Deception
Neuroscientists discover the tricks and shortcuts the brain takes to help us survive.
Hidden Volcano Abyss
53:19
Season 50 Episode 8
Hidden Volcano Abyss
Investigate one of the most powerful volcanic eruptions in recorded history.
Saving the Right Whale
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53:31
Season 50 Episode 7
Saving the Right Whale
Follow scientists determined to save the critically endangered right whale.
Chasing Carbon Zero
53:31
Season 50 Episode 6
Chasing Carbon Zero
Here’s how the U.S. could reach net-zero carbon emissions by 2050.
Weathering the Future
53:31
Season 50 Episode 5
Weathering the Future
Americans use ancient wisdom and new technology to fight extreme weather.
Nazca Desert Mystery
53:31
Season 49 Episode 17
Nazca Desert Mystery
Who created the Nazca lines and why? New clues to one of the greatest ancient enigmas.
Rebuilding Notre Dame
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53:43
Season 49 Episode 13
Rebuilding Notre Dame
A team tackles the restoration of iconic Notre Dame Cathedral.
Ice Age Footprints
53:43
Season 49 Episode 9
Ice Age Footprints
Ancient footprints provide new evidence of humans and extinct giant beasts of the Ice Age.
Why Ships Crash
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53:20
Season 49 Episode 8
Why Ships Crash
How could a single ship cause a major supply chain crisis around the globe?
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