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The World’s First Combat Submarine

The World’s First Combat Submarine

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10:49
How Deadly Was the Musket?

How Deadly Was the Musket?

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4:57
Why Just Planting Trees Won’t Save the Planet

Why Just Planting Trees Won’t Save the Planet

Video
3:04
These Smart Glasses Know Who You Are, and Much More

These Smart Glasses Know Who You Are, and Much More

Video
4:18
How Algorithms Decide Who Gets a Kidney

How Algorithms Decide Who Gets a Kidney

Video
1:07
The Science of Scratch-Offs: What Your Brain Can’t Resist

The Science of Scratch-Offs: What Your Brain Can’t Resist

Video
6:39
This Giant Telescope Will Reveal The Universe in Unbelievable Detail

This Giant Telescope Will Reveal The Universe in Unbelievable Detail

Video
5:59
How Harvard Discovered It Has an Original Copy of the Magna Carta

How Harvard Discovered It Has an Original Copy of the Magna Carta

Video
3:13
The Next Big Earthquake Could Sink Parts of the Pacific Northwest

The Next Big Earthquake Could Sink Parts of the Pacific Northwest

Video
5:08
This Discovery Rewrote Human History

This Discovery Rewrote Human History

Video
2:50
This Was One of the First Known Human Ritual Sites

This Was One of the First Known Human Ritual Sites

Video
2:41
Signs of Life on Mars? NASA's Discovery, Explained

Signs of Life on Mars? NASA's Discovery, Explained

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3:38
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NOVA

4 Ways the Universe Could End

If the universe as we know it started with the Big Bang, will it also have an end? And if it’s going to end someday - how? Discover the four main ideas about how the universe might end, and find out which one has the most evidence supporting it. With host Athena Brensberger, dive into our universe's very distant future in this episode of What the Physics?!
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Beyond the Elements: Reactions
53:31
Season 47 Episode 17
Beyond the Elements: Reactions
Discover the fascinating chemistry that makes our world and everything in it—including us.
Can We Cool the Planet?
53:31
Season 47 Episode 16
Can We Cool the Planet?
Scientists look to geoengineering and other methods to cool the planet.
Nature's Fear Factor
53:21
Season 47 Episode 9
Nature's Fear Factor
Can bringing predators—and fear—back into an ecosystem help restore its natural balance?
Cat Tales
53:21
Season 47 Episode 3
Cat Tales
Goddess, demon, house pet? What does science say about the human relationship with cats?
Polar Extremes
1:52:46
Season 47 Episode 1
Polar Extremes
Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.
Decoding da Vinci
53:30
Season 46 Episode 21
Decoding da Vinci
Discover the science behind Leonardo da Vinci's masterpieces—and Mona Lisa's iconic smile.
Why Bridges Collapse
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53:25
Season 46 Episode 18
Why Bridges Collapse
Can new engineering techniques help prevent deadly bridge collapses?
Rise of the Mammals
53:15
Season 46 Episode 17
Rise of the Mammals
Amazing fossils reveal how mammals took over after an asteroid wiped out the dinosaurs.
Back to the Moon
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53:32
Season 46 Episode 11
Back to the Moon
Discover why scientists and entrepreneurs alike have their sights set on the Moon again.
The Next Pompeii
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53:22
Season 46 Episode 6
The Next Pompeii
In the shadow of Vesuvius and Pompeii, a lesser-known volcano puts Naples at risk.
Rise of the Rockets
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53:34
Season 46 Episode 5
Rise of the Rockets
New technologies are promising a new renaissance in space travel.
Decoding the Great Pyramid
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53:23
Season 46 Episode 4
Decoding the Great Pyramid
New archeological evidence shows the stunning engineering of the Great Pyramid of Giza.
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