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NOVA

What Are Dreams - Preview

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Find out what scientists know about dreams: what they are and why we have them. 8/22/2012

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Dreams: Expert Q & A

Dreams: Expert Q & A

Harvard neuroscientist Robert Stickgold answers questions about sleep and dreams, including lucid dreams an...

Sleep

Sleep

Why do we need sleep? Part of the answer may be to strengthen memories.

Sleep: Expert Q & A

Sleep: Expert Q & A

Matt Walker of Harvard Medical School answers questions on how sleep impacts our ability to learn.

Sleepless Surgeons

Sleepless Surgeons

How important is sleep to a surgeon’s performance? Neil deGrasse Tyson visits a Harvard sleep researcher to...

Episodes of NOVA44

Video thumbnail: NOVA The Nuclear Option

NOVA

The Nuclear Option

How will we power the planet without wrecking the climate?

53:32

The Nuclear Option

53:32

Video thumbnail: NOVA Secrets of the Sky Tombs

NOVA

Secrets of the Sky Tombs

Evidence discovered in the world’s highest tombs reveals ancient rituals and beliefs.

53:32

Secrets of the Sky Tombs

53:32

Video thumbnail: NOVA Treasures of the Earth: Power

NOVA

Treasures of the Earth: Power

Drill underground to see the treasures that power our world—today and into the future.

53:10

Treasures of the Earth: Power

53:10

Video thumbnail: NOVA Treasures of the Earth: Metals

NOVA

Treasures of the Earth: Metals

What is it about the nature of metals that have made them a pillar of human civilization?

53:40

Treasures of the Earth: Metals

53:40

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Clips of NOVA209

Video thumbnail: NOVA What Makes Science True?

NOVA

What Makes Science True?

Science is facing what many consider a reproducibility crisis, and the stakes are high.

14:59

What Makes Science True?

14:59

Video thumbnail: NOVA Making a Samurai Sword

NOVA

Making a Samurai Sword

Japanese master craftsmen turned a pile of crude iron into the deadly Samurai sword.

2:32

Making a Samurai Sword

2:32

Video thumbnail: NOVA Zika: The Untold Story

NOVA

Zika: The Untold Story

Join the scientists who saw Zika coming as they trace the origins of this devastating viru

14:39

Zika: The Untold Story

14:39

Video thumbnail: NOVA Customizing Education

NOVA

Customizing Education

Alt School is an experiment in customized learning environments.

4:06

Customizing Education

4:06

Video thumbnail: NOVA Why Bats Share Blood

NOVA

Why Bats Share Blood

Vampire bats will sometimes share a blood meal—but only with friends and family.

1:54

Why Bats Share Blood

1:54

Video thumbnail: NOVA Quantum Physics to Protect Votes

NOVA

Quantum Physics to Protect Votes

You can make your vote incredibly secure on Election Day—all thanks to quantum mechanics.

5:23

Quantum Physics to Protect Votes

5:23

Video thumbnail: NOVA Unmaking an Islamic Terrorist

NOVA

Unmaking an Islamic Terrorist

Mubin Shaikh went from young army cadet to self-radicalized Jihadist and back. Here’s what

11:50

Unmaking an Islamic Terrorist

11:50

Video thumbnail: NOVA The Importance of Immersion

NOVA

The Importance of Immersion

For English language learners, inclusion in fluent English classes is crucial for growth.

5:08

The Importance of Immersion

5:08

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Previews of NOVA168

Video thumbnail: NOVA Search for the Super Battery Preview

NOVA

Search for the Super Battery Preview

Explore the hidden world of energy storage and how it holds the keys to a greener future.

0:30

Search for the Super Battery Preview

0:30

Video thumbnail: NOVA Ultimate Cruise Ship Preview

NOVA

Ultimate Cruise Ship Preview

Join pioneering shipbuilders as they embark on a feat of maritime engineering.

0:30

Ultimate Cruise Ship Preview

0:30

Video thumbnail: NOVA The Nuclear Option Preview

NOVA

The Nuclear Option Preview

How will we power the planet without wrecking the climate?

The Nuclear Option Preview

Video thumbnail: NOVA Secrets of the Sky Tombs Preview

NOVA

Secrets of the Sky Tombs Preview

Evidence discovered in the world’s highest tombs reveals ancient rituals and beliefs.

0:30

Secrets of the Sky Tombs Preview

0:30

See All Previews