It's Okay to Be Smart

The Largest River On Earth Is In The Sky

Season 5 Episode 39 | 5m 30s Video has closed captioning.

What’s the largest river on Earth? If you said “the Amazon”… you’re only half right. Scientists have discovered an even bigger river in South America, and it’s in the sky above the Amazon rainforest. Turns out, this sky river is the reason there’s a rainforest at all…

Aired: 10/24/18

Rating: NR

From:

Problems Playing Video? | Closed Captioning

More Episodes

Video thumbnail: It's Okay to Be Smart Do Fish Pee?

It's Okay to Be Smart

Do Fish Pee?

You know you’ve wondered. Do fish actually pee?

S5 Ep46 | 4m 53s

Do Fish Pee?

S5 Ep46 | 4m 53s

Video thumbnail: It's Okay to Be Smart Does Someone Else Have Your Face?

It's Okay to Be Smart

Does Someone Else Have Your Face?

They say everyone has a doppelgänger, but is that really true?

S5 Ep45 | 12m 42s

Does Someone Else Have Your Face?

S5 Ep45 | 12m 42s

Video thumbnail: It's Okay to Be Smart The Raisin Bran Effect

It's Okay to Be Smart

The Raisin Bran Effect

Where do you see the Brazil Nut Effect around you?

S5 Ep44 | 5m 19s

The Raisin Bran Effect

S5 Ep44 | 5m 19s

Video thumbnail: It's Okay to Be Smart Can We Get Older Without Aging?

It's Okay to Be Smart

Can We Get Older Without Aging?

What do other life forms have to teach us about staying alive as we get old?

S5 Ep43 | 8m 53s

Can We Get Older Without Aging?

S5 Ep43 | 8m 53s

Video thumbnail: It's Okay to Be Smart The Dinosaur On Your Thanksgiving Table

It's Okay to Be Smart

The Dinosaur On Your Thanksgiving Table

Eating turkey this holiday season? You’re eating a dinosaur!

S5 Ep42 | 10m 16s

The Dinosaur On Your Thanksgiving Table

S5 Ep42 | 10m 16s

Video thumbnail: It's Okay to Be Smart What is Farthest Away?

It's Okay to Be Smart

What is Farthest Away?

The edge of everything might not even exist…

S5 Ep41 | 6m 8s

What is Farthest Away?

S5 Ep41 | 6m 8s

Video thumbnail: It's Okay to Be Smart The Deadliest Flu Season in History?

It's Okay to Be Smart

The Deadliest Flu Season in History?

The 1918 Flu outbreak killed 5% of the world's population--could it happen again?

S5 Ep40 | 7m 41s

The Deadliest Flu Season in History?

S5 Ep40 | 7m 41s

Video thumbnail: It's Okay to Be Smart The Largest River On Earth Is In The Sky

Now Showing

It's Okay to Be Smart

The Largest River On Earth Is In The Sky

Scientists have discovered the largest river on Earth, and it’s in the sky above.

S5 Ep39 | 5m 30s

The Largest River On Earth Is In The Sky

S5 Ep39 | 5m 30s

Video thumbnail: It's Okay to Be Smart Where Do Teeth Come From?

It's Okay to Be Smart

Where Do Teeth Come From?

Teeth are made from some biological nanotechnology that will blow your mind.

S5 Ep38 | 6m 40s

Where Do Teeth Come From?

S5 Ep38 | 6m 40s

Video thumbnail: It's Okay to Be Smart What Do Raindrops Really Look Like?

It's Okay to Be Smart

What Do Raindrops Really Look Like?

Raindrops are shaped like teardrops, right? Wrong! Let's discover rain's true shape.

S5 Ep37 | 5m 24s

What Do Raindrops Really Look Like?

S5 Ep37 | 5m 24s

Video thumbnail: It's Okay to Be Smart Is Height All in Our Genes?

It's Okay to Be Smart

Is Height All in Our Genes?

Turns out the inheritance of height is a lot more complicated than we thought.

S5 Ep36 | 6m 7s

Is Height All in Our Genes?

S5 Ep36 | 6m 7s

Video thumbnail: It's Okay to Be Smart Will You Still Eat Raw Fish After Watching This Video?

It's Okay to Be Smart

Will You Still Eat Raw Fish After Watching This Video?

Ever wondered why restaurants warn you about raw or undercooked seafood on their menus?

S5 Ep35 | 6m 33s

Will You Still Eat Raw Fish After Watching This Video?

S5 Ep35 | 6m 33s

See All Episodes

Explore Digital Studios Shows

Digital Studios
Antarctic Extremes
Eons
Monstrum
Deep Look
Good Gumbo