Up Next

Milking a Horse is Harder than You Think

Milking a Horse is Harder than You Think

Milking a Horse is Harder than You Think

Video

0:38

Why Did These Vikings' Bones Appear Older Than They Are?

Why Did These Vikings' Bones Appear Older Than They Are?

Why Did These Vikings' Bones Appear Older Than They Are?

Video

2:18

Who Was This High-Status Viking Warrior?

Who Was This High-Status Viking Warrior?

Who Was This High-Status Viking Warrior?

Video

1:55

What Fish Revealed About This Mysterious Grave

What Fish Revealed About This Mysterious Grave

What Fish Revealed About This Mysterious Grave

Video

2:46

This Cute Robot Uses Sophisticated AI to Help Teach Kids

This Cute Robot Uses Sophisticated AI to Help Teach Kids

This Cute Robot Uses Sophisticated AI to Help Teach Kids

Video

4:18

The 170-Year Search for a Planet Beyond Neptune

The 170-Year Search for a Planet Beyond Neptune

The 170-Year Search for a Planet Beyond Neptune

Video

2:29

The Evidence for Planet Nine’s Existence

The Evidence for Planet Nine’s Existence

The Evidence for Planet Nine’s Existence

Video

3:03

Inside the Search for Planet Nine

Inside the Search for Planet Nine

Inside the Search for Planet Nine

Video

3:14

Six Ways Quantum Computers Could Change the World

Six Ways Quantum Computers Could Change the World

Six Ways Quantum Computers Could Change the World

Video

3:50

Astronomers Photograph 2 Newborn Planets for the First Time

Astronomers Photograph 2 Newborn Planets for the First Time

Astronomers Photograph 2 Newborn Planets for the First Time

Video

2:41

The Science Behind This Sleight of Hand

The Science Behind This Sleight of Hand

The Science Behind This Sleight of Hand

Video

0:46

How Did the Moon Come to Be?

How Did the Moon Come to Be?

How Did the Moon Come to Be?

Video

1:01

Back to Show

NOVA

Why Fires Move Faster Up a Hill than Down

Paradise, California's Camp Fire accelerated as it moved uphill. U.S. Department of Agriculture scientists conduct an experiment to discover why.