Skip to main content
Donate

Up Next

What Are UFOs?

What Are UFOs?

Season 52 Episode 1
53:43
Extreme Airport Engineering

Extreme Airport Engineering

Season 52 Episode 2
53:40
Dino Birds

Dino Birds

Season 52 Episode 3
53:35
Egypt's Tombs of Amun

Egypt's Tombs of Amun

Season 52 Episode 4
53:40
Pompeii's Secret Underworld

Pompeii's Secret Underworld

Season 52 Episode 5
53:40
Baltimore Bridge Collapse

Baltimore Bridge Collapse

Season 52 Episode 6
53:32
Revolutionary War Weapons

Revolutionary War Weapons

Season 52 Episode 7
53:39
Secrets of the Forest

Secrets of the Forest

Season 52 Episode 8
53:41
Critical Condition: Health in Black America

Critical Condition: Health in Black America

Season 52 Episode 9
1:36:42
Ultimate Crash Test: Countdown

Ultimate Crash Test: Countdown

Season 52 Episode 10
53:29
NOVA Season 52

Ultimate Crash Test: Impact

Season 52 Episode 11
53:27
Episode 5: The Calling

The Calling

Season 4 Episode 5
53:05
Back to Show
NOVA

How Harvard Discovered It Has an Original Copy of the Magna Carta

Researchers used ultraviolet scans to compare Harvard Law School’s copy of the Magna Carta, word for word, against the other known originals. Their analysis helped confirm it was an original from 1300.