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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
These Smart Glasses Know Who You Are, and Much More

These Smart Glasses Know Who You Are, and Much More

Video
4:18
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NOVA

Saving Notre Dame Preview

When Notre Dame Cathedral caught fire in 2019, Paris came perilously close to losing more than 800 years of history. As engineers rebuild, researchers use cutting-edge technology to piece together what happened and restore the cathedral.