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Arctic Sinkholes

Arctic Sinkholes

Season 49 Episode 1
53:30
Great Mammoth Mystery

Great Mammoth Mystery

Season 49 Episode 3
53:16
Why Ships Crash

Why Ships Crash

Season 49 Episode 8
53:20
Ice Age Footprints

Ice Age Footprints

Season 49 Episode 9
53:43
Rebuilding Notre Dame

Rebuilding Notre Dame

Season 49 Episode 13
53:43
Nazca Desert Mystery

Nazca Desert Mystery

Season 49 Episode 17
53:31
Hidden Volcano Abyss

Hidden Volcano Abyss

Season 50 Episode 8
53:19
Your Brain: Perception Deception

Your Brain: Perception Deception

Season 50 Episode 9
53:30
Your Brain: Who's in Control?

Your Brain: Who's in Control?

Season 50 Episode 10
53:20
Ancient Earth: Birth of the Sky

Ancient Earth: Birth of the Sky

Season 50 Episode 11
53:47
Ancient Earth: Frozen

Ancient Earth: Frozen

Season 50 Episode 12
53:46
Ancient Earth: Life Rising

Ancient Earth: Life Rising

Season 50 Episode 13
53:47
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NOVA

Ancient Maya Metropolis

Season 48 Episode 22

The ancient ancestors of today’s Maya people thrived in large sophisticated cities across Central America for centuries. Why, around 750 CE, did they begin to abandon many of their major cities? Archaeologists investigate dramatic new evidence of the catastrophic droughts and instability that pushed cities beyond their limits.

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A long-lost ancient cemetery opens the door to a unique period in Egyptian history.
Dino Birds
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Extreme Airport Engineering
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Follow the race to build a world-class airport on the site of one of America’s busiest flying hubs.
What Are UFOs?
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Can science reveal the secrets of mysterious objects seen in our skies?
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Building Stuff: Change It!
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Building Stuff: Reach It!
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Humans are born to roam. See how engineers are inventing new ways to explore and extend our range.
Building Stuff: Boost It!
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Is engineering humanity’s superpower? See how we can amplify our natural abilities in amazing ways.
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Dive into the universe at the tiniest – and weirdest – of scales.
Solar System: Wandering Worlds
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Meet the surprising, oddball worlds moving around our solar system.
Solar System: Icy Worlds
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Visit strange, frozen worlds to discover the bizarre ice that forms beyond Earth.
Solar System: Volcano Worlds
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53:34
Discover the powerful volcanic eruptions that have shaped worlds across our solar system.
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