Known Universe

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  - How to Make Crack
    Show: Drugs Inc.
  - Uzbek Hideout
    Show: 21st Century Sex Slaves
  - One Strange Rock Teaser
    Show: One Strange Rock
  - Inside 9/11: Zero Hour
    Show: Inside 9/11
  - Black Dolphin Prison
    Show: Inside: Russia's Toughest Prisons
  - Growing Up Butterfly
    Show: Great Migrations
  - Hagia Sofia: Dome Secrets
    Show: Ancient Megastructures
  - Semen Slurping Macaque
    Show: World's Weirdest
  - Make It, Take It
    Show: Drugs Inc.
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PHOTOS
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  - Meet the Tuna.com Crew
    Show: Wicked Tuna
  - Meet the JFK Officers
    Show: To Catch a Smuggler
  - Bounty Hunter Crew
    Show: Wicked Tuna
  - Hidden Treasures
    Show: Drain the Oceans
  - Hard Merchandise Crew
    Show: Wicked Tuna
  - Rods, Reels and Tuna
    Show: Wicked Tuna
  - Border Security Season 2
    Show: Border Security
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SCHEDULE

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KNOWN UNIVERSE

Steve Jacobs Desktop Tornado Demo
Steve Jacobs uses his desktop tornado demo to describe conservation of angular momentum.
(00:49)
Field Trip Oakland Zoo with Lynn Rothschild
Lynn Rothschild takes us on a field trip to the Oakland Zoo to discuss the diversity of life on...
(06:44)
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The Animated Universe
Animated Images from the Known Universe
Known Universe Team
Known Universe Team Images
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ABOUT THE SHOW

Ever wondered what would happen if you were sucked into a black hole? Or, if wormholes could make time travel a reality? And could life on Earth survive a huge meteor strike like the one that took out the dinosaurs?

Now you can find out in this captivating series. Join experts as they unravel the most mind-boggling mysteries of the cosmos, using the latest scientific theories, dramatic time sequences and everyday examples of incredible forces.

EXTREME UNIVERSE: EXPLOSIVE FORCE
It might be beautiful but having started with the Big Bang, the universe is an incredibly dangerous place. Witness the destructive power of a supernova and find out how a gamma ray burst could rip the atmosphere from Earth!

EXTREME UNIVERSE: SUPER SIZED
Despite what some people might tell you, in this universe size matters. From unfeasibly big to unimaginably small, find out how size shapes our universe.

EXTREME...