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Sagittarius A*: The Void at the Center of our Galaxy

Sagittarius A*: The Void at the Center of our Galaxy

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1:54
Was the Big Bang an Explosion or Something Else?

Was the Big Bang an Explosion or Something Else?

Video
3:01
Could a "Dune" Sandworm Exist in Real Life?

Could a "Dune" Sandworm Exist in Real Life?

Video
7:07
The Link Between High-Potency Cannabis Use and Psychosis

The Link Between High-Potency Cannabis Use and Psychosis

Video
4:42
Take a Ride into a Supermassive Black Hole

Take a Ride into a Supermassive Black Hole

Video
2:41
Scientists Capture the First Light from the Big Bang

Scientists Capture the First Light from the Big Bang

Video
2:57
In Galaxies Far, Far Away, Some Planets Have Two Stars

In Galaxies Far, Far Away, Some Planets Have Two Stars

Video
2:38
Where Did the Cannabis Plant Come From?

Where Did the Cannabis Plant Come From?

Video
4:10
Meet the Marvelous Christmas Tree Worm

Meet the Marvelous Christmas Tree Worm

Video
5:20
What will the James Webb Space Telescope do?

What will the James Webb Space Telescope do?

Video
5:44
Why is There a Global Chip Shortage?

Why is There a Global Chip Shortage?

Video
5:15
Could Antiviral Pills Change the Course of the Pandemic?

Could Antiviral Pills Change the Course of the Pandemic?

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8:12
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NOVA

Yes, There's Really a Frozen Exoplanet named Hoth

Exoplanets like OGLE-2005-BLG-390Lb, aka Hoth, seem to defy the logic of our solar system. So scientists needed to rethink the planetary rulebook.
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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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