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The Arctic Jet Stream Affects Global Climate. Here's Why.

The Arctic Jet Stream Affects Global Climate. Here's Why.

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3:03
This Detector Can Catch Cosmic Neutrinos

This Detector Can Catch Cosmic Neutrinos

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3:20
MOSAiC Scientists Measure Arctic Sea Ice Volume

MOSAiC Scientists Measure Arctic Sea Ice Volume

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3:05
Can this Cuttlefish Pass an Intelligence Test?

Can this Cuttlefish Pass an Intelligence Test?

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9:51
Was Eating Insects Key to Human Brain Evolution?

Was Eating Insects Key to Human Brain Evolution?

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3:32
Insects Make Protein More Efficiently Than Mammals

Insects Make Protein More Efficiently Than Mammals

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5:14
How Does a Brain on THC Compare to a Brain on CBD?

How Does a Brain on THC Compare to a Brain on CBD?

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4:30
How a Star Dies in a Supernova

How a Star Dies in a Supernova

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2:48
Will the Universe's Stars Someday Disappear?

Will the Universe's Stars Someday Disappear?

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2:42
Georgia’s First Black-Owned Hemp Farm

Georgia’s First Black-Owned Hemp Farm

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3:32
The Milky Way and Andromeda Galaxies will Someday Collide

The Milky Way and Andromeda Galaxies will Someday Collide

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2:56
Gaze at Galaxies with NASA's Hubble Space Telescope

Gaze at Galaxies with NASA's Hubble Space Telescope

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2:44
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NOVA

What is the Endocannabinoid System?

THC, the psychoactive component of cannabis, binds to receptors in and outside of the brain, causing cells to behave differently. Cannabinoid receptors, named after cannabis, are found in nearly every organ of the human body.
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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.
Einstein's Quantum Riddle
53:51
Season 46 Episode 2
Einstein's Quantum Riddle
Join scientists as they grab light from across the universe to prove quantum entanglement.
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