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The Science of the COVID-19 Treatments Trump Received

The Science of the COVID-19 Treatments Trump Received

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

Repairing Notre Dame's Vaults with Underground Quarries

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2:51
Stabilizing Notre Dame's Famous Buttresses

Stabilizing Notre Dame's Famous Buttresses

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3:03
Saving Notre Dame's Stained Glass Masterpieces

Saving Notre Dame's Stained Glass Masterpieces

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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

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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
This University Monitors COVID-19 Through Saliva Testing

This University Monitors COVID-19 Through Saliva Testing

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6:53
The Biggest Space News Stories of 2020

The Biggest Space News Stories of 2020

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5:27
What Gives Hot Peppers Their Heat?

What Gives Hot Peppers Their Heat?

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8:22
How Killer Snail Venom Plays a Key Role in Drug Development

How Killer Snail Venom Plays a Key Role in Drug Development

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6:08
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NOVA

The Tech Behind Mail-In Voting

Election officials have braced for an unprecedented wave of mail-in ballots. What safeguards are in place to track individual ballots as they travel to voters and back to the election office?