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Sharks Are Showing Up Earlier—and Staying Longer

Sharks Are Showing Up Earlier—and Staying Longer

Sharks Are Showing Up Earlier—and Staying Longer

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4:18

Saving Notre Dame’s Iconic Stone Vaulting

Saving Notre Dame’s Iconic Stone Vaulting

Saving Notre Dame’s Iconic Stone Vaulting

Video

2:53

Restoring Notre Dame's Iconic Stained Glass

Restoring Notre Dame's Iconic Stained Glass

Restoring Notre Dame's Iconic Stained Glass

Video

3:00

How Computer Algorithms Make Predictions

How Computer Algorithms Make Predictions

How Computer Algorithms Make Predictions

Video

2:30

Watch the DART Spacecraft Smash into an Asteroid

Watch the DART Spacecraft Smash into an Asteroid

Watch the DART Spacecraft Smash into an Asteroid

Video

0:51

How Storm Surges Work—and Why They’re So Deadly

How Storm Surges Work—and Why They’re So Deadly

How Storm Surges Work—and Why They’re So Deadly

Video

4:49

How Scientists Developed a Drug to Prevent HIV

How Scientists Developed a Drug to Prevent HIV

How Scientists Developed a Drug to Prevent HIV

Video

3:05

How Police Use Algorithms to Predict Crime

How Police Use Algorithms to Predict Crime

How Police Use Algorithms to Predict Crime

Video

5:25

Psychedelics as Medicine: The History of Peyote

Psychedelics as Medicine: The History of Peyote

Psychedelics as Medicine: The History of Peyote

Video

4:02

How Psychedelics Change the Brain

How Psychedelics Change the Brain

How Psychedelics Change the Brain

Video

4:11

Why NASA is Going Back to the Moon

Why NASA is Going Back to the Moon

Why NASA is Going Back to the Moon

Video

4:53

Divers Hunt Venomous Fish Invading Our Oceans

Divers Hunt Venomous Fish Invading Our Oceans

Divers Hunt Venomous Fish Invading Our Oceans

Video

3:00

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NOVA

This Flood Barrier Could Save Venice

Venice is sinking, with sea level predicted to rise another 40 inches by the end of the century. Could a colossal network of flood barriers save it from the sea?