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The extinction crisis

The extinction crisis

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6:11
The Liberty Science Center

The Liberty Science Center

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3:20
The Data behind our changing climate

The Data behind our changing climate

Video
5:31
Fitbits for birds

Fitbits for birds

Video
6:55
The interplay between Religious Experiences and the Brain

The interplay between Religious Experiences and the Brain

Video
6:34
The Engineering behind the Ironing Board

The Engineering behind the Ironing Board

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3:53
3-D Printing for Space

3-D Printing for Space

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7:25
Detecting Fake IDs

Detecting Fake IDs

Video
4:58
The World's Most Powerful Rocket

The World's Most Powerful Rocket

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3:29
Saving The Sacred Navajo Water

Saving The Sacred Navajo Water

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7:35
Bill Nye's Warning for the Future of Our Planet

Bill Nye's Warning for the Future of Our Planet

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4:41
Habitat Replication

Habitat Replication

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8:08
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SciTech Now

A Tesla in Space

Dave Mosher is a science reporter who has written for Scientific American, Popular Mechanics, National Geographic News and Discovery.com. He joins Hari Sreenivasan to discuss planetary protection.