Season 4

Video thumbnail: Be Smart Why Is The Universe So Empty? (ft. PHD Comics!)

Be Smart

Why Is The Universe So Empty? (ft. PHD Comics!)

Why is the universe organized the way it is? And why is it so empty?

Why Is The Universe So Empty? (ft. PHD Comics!)

Video thumbnail: Be Smart Do You Really Have Two Brains?

Be Smart

Do You Really Have Two Brains?

Are you a left-brained person or a right-brained person? Spoiler: You’re neither.

Do You Really Have Two Brains?

Video thumbnail: Be Smart Putting Hurricane Harvey In Perspective

Be Smart

Putting Hurricane Harvey In Perspective

How do we comprehend a storm like Hurricane Harvey? Let's put it into perspective.

Putting Hurricane Harvey In Perspective

Video thumbnail: Be Smart DNA Doesn’t Look Like What You Think!

Be Smart

DNA Doesn’t Look Like What You Think!

Learn why we can’t look directly at DNA. Find out how DNA is actually packed inside cells.

DNA Doesn’t Look Like What You Think!

Video thumbnail: Be Smart How Poop Shapes the World

Be Smart

How Poop Shapes the World

Poop, throughout nature, shapes the world in ways you might not imagine.

How Poop Shapes the World

Video thumbnail: Be Smart When Is It Winter On Other Planets?

Be Smart

When Is It Winter On Other Planets?

Earth has seasons, but what about the rest of the planets in the solar system?

When Is It Winter On Other Planets?

Video thumbnail: Be Smart Your Climate Conscience - feat. Al Gore

Be Smart

Your Climate Conscience - feat. Al Gore

News about climate change is often full of doom, guilt, and anxiety.

Your Climate Conscience - feat. Al Gore

Video thumbnail: Be Smart Why Nature Loves Hexagons (featuring Infinite Series!)

Be Smart

Why Nature Loves Hexagons (featuring Infinite Series!)

From spirals to spots to fractals, nature is full of interesting patterns.

Why Nature Loves Hexagons (featuring Infinite Series!)

Video thumbnail: Be Smart The Surprising Origin of Thanksgiving Foods

Be Smart

The Surprising Origin of Thanksgiving Foods

I’m thankful for science. And also pie

The Surprising Origin of Thanksgiving Foods

Video thumbnail: Be Smart We Got Ants In Our Plants!

Be Smart

We Got Ants In Our Plants!

What is this? A forest for ANTS?!

We Got Ants In Our Plants!

Video thumbnail: Be Smart How Do Glaciars Move?

Be Smart

How Do Glaciars Move?

Glacier ice flows like a liquid, and it does that without melting!

How Do Glaciars Move?

Video thumbnail: Be Smart Beavers: The Smartest Things in Fur Pants

Be Smart

Beavers: The Smartest Things in Fur Pants

we show you why Earth’s second largest rodent is more amazing than you ever knew

Beavers: The Smartest Things in Fur Pants

Video thumbnail: Be Smart Orchid Mantis: Looks That Kill

Be Smart

Orchid Mantis: Looks That Kill

These killer insects are almost indistinguishable from orchids!

Orchid Mantis: Looks That Kill

Video thumbnail: Be Smart Nature's Living Fireworks

Be Smart

Nature's Living Fireworks

This week we investigate the beautiful phenomenon of bioluminescence.

Nature's Living Fireworks

Video thumbnail: Be Smart How The Pyramids Were Built (Pyramid Science Part 2)

Be Smart

How The Pyramids Were Built (Pyramid Science Part 2)

This week we look at ancient Egyptian mathematics, building techniques, tools, and culture

How The Pyramids Were Built (Pyramid Science Part 2)

Video thumbnail: Be Smart Is Space A Thing?

Be Smart

Is Space A Thing?

Since the days of Ancient Greece, philosophers and scientists have been asking Whats space

Is Space A Thing?

Video thumbnail: Be Smart How Ingenious Animals Have Engineered Air Conditioning

Be Smart

How Ingenious Animals Have Engineered Air Conditioning

This week we look at how a few of these species have mastered physics to install air condi

How Ingenious Animals Have Engineered Air Conditioning

Video thumbnail: Be Smart De-Extinction: A Mammoth Undertaking

Be Smart

De-Extinction: A Mammoth Undertaking

his week we look at the technical and ethical hurdles behind the science of de-extinction

De-Extinction: A Mammoth Undertaking

Video thumbnail: Be Smart CRISPR and the Future of Human Evolution

Be Smart

CRISPR and the Future of Human Evolution

In part 4 of our special series on human ancestry and evolution, we look into the future.

CRISPR and the Future of Human Evolution

Video thumbnail: Be Smart What’s REALLY Warming the Earth?

Be Smart

What’s REALLY Warming the Earth?

As earth temperatures continue to rise, what's really to blame?

What’s REALLY Warming the Earth?

Video thumbnail: Be Smart Are We All Related?

Be Smart

Are We All Related?

In part3 of our special series on human ancestry we investigate how closely related we are

Are We All Related?

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