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Meet the NASA Scientist Who Uses Lasers to Study Forests

Meet the NASA Scientist Who Uses Lasers to Study Forests

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4:05
The Tech Behind Mail-In Voting

The Tech Behind Mail-In Voting

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6:20
What is Solar Geoengineering and Why is it Controversial?

What is Solar Geoengineering and Why is it Controversial?

Video
4:16
How Much Coal Do People Burn Each Year?

How Much Coal Do People Burn Each Year?

Video
2:13
The Science of the COVID-19 Treatments Trump Received

The Science of the COVID-19 Treatments Trump Received

Video
6:37
Repairing Notre Dame's Vaults with Underground Quarries

Repairing Notre Dame's Vaults with Underground Quarries

Video
2:51
Stabilizing Notre Dame's Famous Buttresses

Stabilizing Notre Dame's Famous Buttresses

Video
3:03
Saving Notre Dame's Stained Glass Masterpieces

Saving Notre Dame's Stained Glass Masterpieces

Video
3:02
Is it Safe to Fly During the Pandemic?

Is it Safe to Fly During the Pandemic?

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6:14
Your COVID-19 Vaccine is Coming

Your COVID-19 Vaccine is Coming

Video
7:12
Half Sisters Unite Thanks to DNA Testing

Half Sisters Unite Thanks to DNA Testing

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4:19
How—and why—DNA Testing Uses Biased Reference Databases

How—and why—DNA Testing Uses Biased Reference Databases

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5:20
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NOVA

Inside OSIRIS-REx’s Mission to Tag Asteroid Bennu

NASA's OSIRIS-REx spacecraft successfully touched and collected a sample from the surface of asteroid Bennu—without a human at the controls.