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 How Vultures Can Eat Rotten Meat

    NOVA

    How Vultures Can Eat Rotten Meat

    Why don't vultures get food poisoning?

    How Vultures Can Eat Rotten Meat

    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 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 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 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