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NOVA

Video thumbnail: NOVA Why More Testing Is Good

NOVA

Why More Testing Is Good

Students who get tested a lot without being graded can more easily recall what they learn.

3:23

Why More Testing Is Good

3:23

Video thumbnail: NOVA Where Your Face Comes From

NOVA

Where Your Face Comes From

When you were an embryo, a parade of molecules sculpted the cells that became your face.

3:58

Where Your Face Comes From

3:58

Video thumbnail: NOVA The Hole in the Sky

NOVA

The Hole in the Sky

That time when NOVA reported on the first sign of the ozone hole's depletion...in 1986

2:21

The Hole in the Sky

2:21

Video thumbnail: NOVA The Serengeti Lion Project

NOVA

The Serengeti Lion Project

After 50 years, Craig Packer & his team have records of the nearly 5,000 Serengeti lions.

1:37

The Serengeti Lion Project

1:37

Video thumbnail: NOVA NOVA Black Holes App

NOVA

NOVA Black Holes App

In this iPad app, navigate fields of cosmic objects in your quest to become a black hole.

1:00

NOVA Black Holes App

1:00

Video thumbnail: NOVA Make Your Own Hydrothermal Vent

NOVA

Make Your Own Hydrothermal Vent

A step-by-step guide to create your very own hydrothermal vent

1:44

Make Your Own Hydrothermal Vent

1:44

Video thumbnail: NOVA 3 Things "Faster Than Light"

NOVA

3 Things "Faster Than Light"

These three things have been said to go faster than light, but do they?

3:49

3 Things "Faster Than Light"

3:49

Video thumbnail: NOVA The Physics Behind Texting

NOVA

The Physics Behind Texting

When you send a text, how does your message make the journey to your friend’s phone?

3:37

The Physics Behind Texting

3:37

Video thumbnail: NOVA Saving the Montauk Lighthouse

NOVA

Saving the Montauk Lighthouse

A unique method to fight erosion saved the Montauk Point Lighthouse from disaster.

2:55

Saving the Montauk Lighthouse

2:55

Video thumbnail: NOVA Saving the Montauk Lighthouse

NOVA

Saving the Montauk Lighthouse

A unique method to fight erosion saved the Montauk Point Lighthouse from disaster.

2:51

Saving the Montauk Lighthouse

2:51

Video thumbnail: NOVA Gravity Changes Colors

NOVA

Gravity Changes Colors

This ingenious experiment proves that gravity changes the color of light all around us.

2:42

Gravity Changes Colors

2:42

Video thumbnail: NOVA Alzheimer's Clinical Trials

NOVA

Alzheimer's Clinical Trials

Real patients and families describe what it's like being in an Alzheimer's clinical trial.

4:30

Alzheimer's Clinical Trials

4:30

Video thumbnail: NOVA Alzheimer's Other Victims

NOVA

Alzheimer's Other Victims

Family members describe what it's like to have a loved one with Alzheimer's.

3:49

Alzheimer's Other Victims

3:49

Video thumbnail: NOVA Alzheimer's Virus-Like Protein

NOVA

Alzheimer's Virus-Like Protein

Tangles of a protein called tau inside neurons may be the culprit behind Alzheimer’s.

4:13

Alzheimer's Virus-Like Protein

4:13

Video thumbnail: NOVA Inside the Mind of Alzheimer’s

NOVA

Inside the Mind of Alzheimer’s

Journalist Greg O'Brien gives a first-hand account of what it's like have Alzheimer's.

4:23

Inside the Mind of Alzheimer’s

4:23

Video thumbnail: NOVA Predicting Alzheimer’s

NOVA

Predicting Alzheimer’s

Certain gene forms increase your risk of developing Alzheimer's.

2:38

Predicting Alzheimer’s

2:38

Video thumbnail: NOVA David Lynch x Robots = A.I. Art

NOVA

David Lynch x Robots = A.I. Art

David Lynch puts a literal face on the oddest collection of little learning robots.

2:11

David Lynch x Robots = A.I. Art

2:11

Video thumbnail: NOVA Ötzi the Iceman's Ax

NOVA

Ötzi the Iceman's Ax

How did Ötzi the Iceman, who lived 5300 years ago, sharpen his ax?

1:48

Ötzi the Iceman's Ax

1:48

Video thumbnail: NOVA Implanting False Memories

NOVA

Implanting False Memories

How to make someone believe they’ve committed a crime that never happened.

3:17

Implanting False Memories

3:17

Video thumbnail: NOVA Amazing Calendar Trick

NOVA

Amazing Calendar Trick

With a dash of math, know the day of the week for any date on the calendar.

4:17

Amazing Calendar Trick

4:17

Video thumbnail: NOVA The Hidden Fluorescent World

NOVA

The Hidden Fluorescent World

The proteins that make fish fluoresce could help scientists map the human brain.

3:19

The Hidden Fluorescent World

3:19

Video thumbnail: NOVA How to Find a Galaxy

NOVA

How to Find a Galaxy

Knowing the addresses of a thousand galaxies yielded a remarkable picture of our universe.

4:24

How to Find a Galaxy

4:24

Video thumbnail: NOVA A Rock Symphony

NOVA

A Rock Symphony

Robert Hazen is a geologist who plays music—two interests that have a lot in common.

1:34

A Rock Symphony

1:34

Video thumbnail: NOVA Bazaar Rocks

NOVA

Bazaar Rocks

It’s possible to find all of Earth’s history tucked inside a market stall in Morocco.

2:24

Bazaar Rocks

2:24

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