Season 7

Video thumbnail: Be Smart Why We Should Put Rockets On the Moon

Be Smart

Why We Should Put Rockets On the Moon

I went to NASA in Houston to talk to astronaut Don Pettit.

Why We Should Put Rockets On the Moon

Video thumbnail: Be Smart The Strange (Unexpected) Reason Ice is Slippery

Be Smart

The Strange (Unexpected) Reason Ice is Slippery

Why is ice slippery? It's a more complicated answer than it seems!

The Strange (Unexpected) Reason Ice is Slippery

Video thumbnail: Be Smart Evolution FAILS in the Human Body

Be Smart

Evolution FAILS in the Human Body

Here’s a rundown of a few of the human body’s biggest evolutionary fails!

Evolution FAILS in the Human Body

Video thumbnail: Be Smart Recycling Is Broken. Here’s How We Can Fix It.

Be Smart

Recycling Is Broken. Here’s How We Can Fix It.

Recycling is broken. Here's how we can fix it.

Recycling Is Broken. Here’s How We Can Fix It.

Video thumbnail: Be Smart Trying a Thanksgiving Feast Made from Bugs

Be Smart

Trying a Thanksgiving Feast Made from Bugs

People say insects are the food of the future.

Trying a Thanksgiving Feast Made from Bugs

Video thumbnail: Be Smart This Face Changes the Human Story

Be Smart

This Face Changes the Human Story

Meet your cousin: Homo naledi.

This Face Changes the Human Story

Video thumbnail: Be Smart What Would Trees Look Like On Other Planets?

Be Smart

What Would Trees Look Like On Other Planets?

Why are trees and other plants green? The answer is full of surprises.

What Would Trees Look Like On Other Planets?

Video thumbnail: Be Smart What Color Is A Banana?

Be Smart

What Color Is A Banana?

How do we see color in the first place?

What Color Is A Banana?

Video thumbnail: Be Smart What’s In a 20,000 Year-Old Cube of Ice?

Be Smart

What’s In a 20,000 Year-Old Cube of Ice?

Earth’s climate is changing in a big way.

What’s In a 20,000 Year-Old Cube of Ice?

Video thumbnail: Be Smart Money Is A Technological Fiction

Be Smart

Money Is A Technological Fiction

Money. We all use it. But is it real?

Money Is A Technological Fiction

Video thumbnail: Be Smart 7 Scientific Urban Legends Debunked!

Be Smart

7 Scientific Urban Legends Debunked!

I look at a few of the most famous incorrect factoids in science.

7 Scientific Urban Legends Debunked!

Video thumbnail: Be Smart Why Don't Birds Lay Square Eggs?

Be Smart

Why Don't Birds Lay Square Eggs?

What is ”egg-shaped” even?

Why Don't Birds Lay Square Eggs?

Video thumbnail: Be Smart Do Trees Talk?

Be Smart

Do Trees Talk?

Walk into any forest, and beneath your feet is what helps make life on Earth possible.

Do Trees Talk?

Video thumbnail: Be Smart How Blind People See With Sound

Be Smart

How Blind People See With Sound

Blind YouTuber Molly Burke shows Joe Hanson a new way to see.

How Blind People See With Sound

Video thumbnail: Be Smart Why We Are Losing the Night Sky

Be Smart

Why We Are Losing the Night Sky

It never gets dark anymore. Not REALLY dark, anyway.

Why We Are Losing the Night Sky

Video thumbnail: Be Smart Apollo’s Most Important Discovery: Inside NASA’s Moon Rock V

Be Smart

Apollo’s Most Important Discovery: Inside NASA’s Moon Rock V

Fifty years ago, we sent the first astronauts to walk on the moon’s face.

Apollo’s Most Important Discovery: Inside NASA’s Moon Rock V

Video thumbnail: Be Smart Could You Be a Chimera?

Be Smart

Could You Be a Chimera?

Could You Be a Chimera?

Could You Be a Chimera?

Video thumbnail: Be Smart Using Gene Editing To Repaint Butterfly Wings

Be Smart

Using Gene Editing To Repaint Butterfly Wings

The Art of Gene-Editing Butterflies (Painting with CRISPR!)

Using Gene Editing To Repaint Butterfly Wings

Video thumbnail: Be Smart 1 MILLION Species Could Go Extinct… Here’s Why.

Be Smart

1 MILLION Species Could Go Extinct… Here’s Why.

One million species may be at risk of extinction.

1 MILLION Species Could Go Extinct… Here’s Why.

Video thumbnail: Be Smart Is Your Eye Color Real?

Be Smart

Is Your Eye Color Real?

How does eye color work?

Is Your Eye Color Real?

Video thumbnail: Be Smart Why Do We Get Dizzy (…and Astronauts Don’t?)

Be Smart

Why Do We Get Dizzy (…and Astronauts Don’t?)

We’ve all gotten dizzy before… but have you ever gotten WEIRD DIZZY?

Why Do We Get Dizzy (…and Astronauts Don’t?)

Video thumbnail: Be Smart The Mystery of the World’s Greatest Butterfly Migration

Be Smart

The Mystery of the World’s Greatest Butterfly Migration

The monarch butterfly migration is one of nature’s greatest events.

The Mystery of the World’s Greatest Butterfly Migration

Video thumbnail: Be Smart How to be Crushed by the Atmosphere!

Be Smart

How to be Crushed by the Atmosphere!

Air. I bet you never even notice that it’s there.

How to be Crushed by the Atmosphere!

Video thumbnail: Be Smart Why Are So Many People Allergic To Food?

Be Smart

Why Are So Many People Allergic To Food?

Why Are So Many People Allergic To Food?

Why Are So Many People Allergic To Food?

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