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NOVA

Mystery of a Masterpiece

Video duration: 52:52Expires: 01/11/17Video has closed captioning.

Experts investigate whether a portrait sold for about $20,000 in 1998 is a lost Leonardo.

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Art Authentication

Art Authentication

See if clever computer algorithms can distinguish a master forgery from a masterpiece.

Catching a Copy

Catching a Copy

See if you can tell a fake from a genuine van Gogh, and hear how one team of computer scientists did it.

Profile: Hany Farid

Profile: Hany Farid

This self-proclaimed "accidental scientist" is a digital detective inventing new ways to tell if photos hav...

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 NOVA208

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

Video thumbnail: NOVA Dancing to Learn... Science

NOVA

Dancing to Learn... Science

A program uses choreography to get kids from diverse communities excited about science.

4:01

Dancing to Learn... Science

4:01

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Previews of NOVA166

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

Video thumbnail: NOVA Treasures of the Earth: Metals Preview

NOVA

Treasures of the Earth: Metals Preview

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

0:30

Treasures of the Earth: Metals Preview

0:30

Video thumbnail: NOVA Treasures of the Earth: Power Preview

NOVA

Treasures of the Earth: Power Preview

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

0:30

Treasures of the Earth: Power Preview

0:30

See All Previews