Extras
What should you do with the borax you have leftover from making slime? Make crystals!
Grow Your Own Crystals
WannaCry Cyberattack Explained
The WannaCry cyberattack cost the economy billions of dollars. Here's why that's scary.
WannaCry Cyberattack Explained
Meet the Gastric-Brooding Frog
These frogs barfed up their babies—and now scientists are trying to revive them.
Meet the Gastric-Brooding Frog
Holocaust Escape Tunnel Preview 1
At ground zero for the final solution, scientists uncover a story of hope and bravery.
Holocaust Escape Tunnel Preview 1
Scientists Walking Confidently
NOVA has stood for science since 1974, bringing remarkable discoveries to TV and beyond.
Scientists Walking Confidently
A Scientist Walks Into A Bar #1
An astrophysicist must explain her work on black holes so two comedians can understand it.
A Scientist Walks Into A Bar #1
A Scientist Walks Into A Bar #2
A scientist must explain the Big Bang and dark energy so two comedians can understand it.
A Scientist Walks Into A Bar #2
Science is facing what many consider a reproducibility crisis, and the stakes are high.
What Makes Science True?
Day the Dinosaurs Died Preview
Experts drill into the impact crater of an asteroid that created a worldwide cataclysm.
Day the Dinosaurs Died Preview
Beetles make up the largest group of insects on Earth. Why do so few have massive pincers?
Darwin's Beetles Spar Off
Why Fiddler Crabs Have Giant Claws
Fiddler crabs' large claws look intimidating, but is deadly combat their main purpose?
Why Fiddler Crabs Have Giant Claws
Extreme Animal Weapons Preview
NOVA uncovers the secrets of nature’s battleground—claws, horns, fangs and all.
Extreme Animal Weapons Preview
Scientists uncover geologic evidence of epic floods that tore through ancient landscapes.
Killer Floods Preview
First Time Britain Left Europe
Geologists think these iconic chalk cliffs hold an extraordinary secret.
First Time Britain Left Europe
Experts reconstruct the Great Hurricane of 1780 to help predict the risk of future storms.
Killer Hurricanes Preview
Scientists hunt for a mega-eruption that plunged medieval Earth into a deep freeze.