Extras

Video thumbnail: NOVA Making a Samurai Sword

NOVA

Making a Samurai Sword

Japanese master craftsmen turned a pile of crude iron into the deadly Samurai sword.

Making a Samurai Sword

Video thumbnail: NOVA Where Your Face Comes From

NOVA

Where Your Face Comes From

When you were an embryo, a parade of molecules sculpted the cells that became your face.

Where Your Face Comes From

Video thumbnail: NOVA The Hole in the Sky

NOVA

The Hole in the Sky

That time when NOVA reported on the first sign of the ozone hole's depletion...in 1986

The Hole in the Sky

Video thumbnail: NOVA The Serengeti Lion Project

NOVA

The Serengeti Lion Project

After 50 years, Craig Packer & his team have records of the nearly 5,000 Serengeti lions.

The Serengeti Lion Project

Video thumbnail: NOVA Drilling For the Dinosaurs' End

NOVA

Drilling For the Dinosaurs' End

A team drills into the crater made by the asteroid that may have wiped out the dinosaurs.

Drilling For the Dinosaurs' End

Video thumbnail: NOVA NOVA Black Holes App

NOVA

NOVA Black Holes App

In this iPad app, navigate fields of cosmic objects in your quest to become a black hole.

NOVA Black Holes App

Video thumbnail: NOVA Make Your Own Hydrothermal Vent

NOVA

Make Your Own Hydrothermal Vent

A step-by-step guide to create your very own hydrothermal vent

Make Your Own Hydrothermal Vent

Video thumbnail: NOVA 3 Things "Faster Than Light"

NOVA

3 Things "Faster Than Light"

These three things have been said to go faster than light, but do they?

3 Things "Faster Than Light"

Video thumbnail: NOVA Gravity Changes Colors

NOVA

Gravity Changes Colors

This ingenious experiment proves that gravity changes the color of light all around us.

Gravity Changes Colors

Video thumbnail: NOVA Amazing Calendar Trick

NOVA

Amazing Calendar Trick

With a dash of math, know the day of the week for any date on the calendar.

Amazing Calendar Trick

Video thumbnail: NOVA How to Find a Galaxy

NOVA

How to Find a Galaxy

Knowing the addresses of a thousand galaxies yielded a remarkable picture of our universe.

How to Find a Galaxy

Video thumbnail: NOVA Lake vs. Olive Oil

NOVA

Lake vs. Olive Oil

A tablespoon of olive oil is put into a lake. After 10 min, a half-acre of waves are gone.

Lake vs. Olive Oil

Video thumbnail: NOVA Launching Half a Ship

NOVA

Launching Half a Ship

Want to make a luxury cruise liner fast? Use two shipyards, then join the pieces together.

Launching Half a Ship

Video thumbnail: NOVA See a Glacier Like Never Before

NOVA

See a Glacier Like Never Before

Meet Helheim, a glacier in Greenland of exquisite beauty at every scale.

See a Glacier Like Never Before

Video thumbnail: NOVA Leaked NSA Spy Gadgets

NOVA

Leaked NSA Spy Gadgets

These NSA spy gadgets were leaked. What would you do if someone used them to spy on you?

Leaked NSA Spy Gadgets

Video thumbnail: NOVA Scientist? Artist. Pirate!

NOVA

Scientist? Artist. Pirate!

Joe Davis is a one-of-a-kind individual sailing uncharted waters between art and science.

Scientist? Artist. Pirate!

Video thumbnail: NOVA A New Way to See the Brain

NOVA

A New Way to See the Brain

Use just diapers and water to get the closest look at the brain yet.

A New Way to See the Brain

Video thumbnail: NOVA Waging Science on the High Seas

NOVA

Waging Science on the High Seas

Doing science in the Arctic is tough. Here's why that's a good thing.

Waging Science on the High Seas

Video thumbnail: NOVA Exuma Cays 2

NOVA

Exuma Cays 2

This video explores Exuma Cays.

Exuma Cays 2

Video thumbnail: NOVA Softer, More Human Robots

NOVA

Softer, More Human Robots

Engineers are making robots more human by turning them entirely flexible, inside and out.

Softer, More Human Robots

Video thumbnail: NOVA Soundscape Ecology

NOVA

Soundscape Ecology

What can sound tell us about the health of an ecosystem?

Soundscape Ecology

Video thumbnail: NOVA DIY Subatomic Particle Detector

NOVA

DIY Subatomic Particle Detector

Reveal subatomic particles that are shooting in front of your eyes all the time.

DIY Subatomic Particle Detector

Video thumbnail: NOVA The Burden of Knowing

NOVA

The Burden of Knowing

Genetic tests reveal important information, but the knowledge comes with a cost.

The Burden of Knowing