Get extended access to 1600+ episodes, binge watch your favorite shows, and stream anytime - online or in the PBS app.
Already a KQED member?
You may have an unactivated KQED Passport member benefit. Check to see.
Season 44 Episode 21 | 53m 14s Video has closed captioning.
66 million years ago, a seven-mile-wide asteroid collided with Earth, triggering a chain of events that coincide with the end of the dinosaurs. But experts have long debated exactly what happened when the asteroid struck and how the giant beasts met their end. Now, scientists have uncovered compelling new clues about the catastrophe.
Aired: 12/06/17
Expires: 12/27/20
Sponsored By:
YouTube Channel
Parenting is full of obstacles that can be hard to navigate—even without a toddler yelling at your face. There’s no instruction manual, which means discerning fact from fiction and reasonable from ridiculous can be maddening. That’s where Parentalogic comes in, a digital series from NOVA and PBS Digital Studios.
Subscribe
