National GeographicNat Geo Wild
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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 UNIVERSE: SPEEDING THROUGH SPACE
Forget Usain Bolt, capable of zipping between New York and Los Angeles 75 times in a single second, light is the fastest thing in the universe. With our current spacecraft stuck in the slow lane, discover if humans can gather enough velocity to get out there and explore.

EXTREME UNIVERSE: IS THERE ANYONE OUT THERE?
Exploring our own planet for clues as to what extraterrestrial life might look like, find out how scientists are searching for aliens and what might happen if we were ever to make contact.

EXTREME UNIVERSE: COLLISION COURSE
Meet the scientists working to defend us from a cataclysmic crash, before we explore deep space collisions on a colossal scale.

Missed an episode or want to know when the next one is showing? Click here to access the episode guide for this series.

EPISODE GUIDE

  • Known Universe: Surviving Outer Space
    Join experts as they unravel the most mind-boggling mysteries of the Cosmos: A Spacetime Odyssey, using the latest scientific theories, dramatic time sequences and everyday examples of incredible forces.
  • Known Universe: Treasure Hunt
    For ages, mankind has been obsessed with finding treasure, from mining gold and other precious metals to the allure of diamonds.
  • Known Universe: Most Powerful Stars
    This series combines the most current scientific information, cutting-edge computer graphics, dramatic time-lapse sequences and everyday examples to shed light on some of the most mind-boggling aspects of our universe.
  • Known Universe: Extreme Space Tech
    This series combines the most current scientific information, cutting-edge computer graphics, dramatic time-lapse sequences and everyday examples to shed light on some of the most mind-boggling aspects of our universe.
  • Known Universe: Escaping Earth
    This series combines the most current scientific information, cutting-edge computer graphics, dramatic time-lapse sequences and everyday examples to shed light on some of the most mind-boggling aspects of our universe.
  • Known Universe: Biggest Cosmic Blasts
    Eruptions are capable of both destruction and creation, and we'll see their astonishing effects on humans and entire galaxies. We'll head to the big island of Hawaii to get up close and personal with one of the most active lava fields on the planet.
  • Known Universe: Costructive Zone
    From the Big Bang to the possibility of alien life and deep space travel, scientists expand our understanding of the universe.
  • Known Universe: End of the World
    This series combines the most current scientific information, cutting-edge computer graphics, dramatic time-lapse sequences and everyday examples to shed light on some of the most mind-boggling aspects of our universe.
  • Known Universe: Blowing Up The Universe
    Hidden behind all its serene beauty is a universe is a place of lurking peril, full of powers so immense they defy our comprehension. In this episode we take a look at our universe's dark side, a cosmos of impending menace.
  • Known Universe: Sizing Up The Universe
    In the known universe, size matters…From the enormous cosmos, to the tiny atoms that are the building blocks of everything, the universe is a place of truly extreme sizes.
  • Known Universe: Speeding Throught the Universe
    In the vast expanse of space, nothing matters more than speed. Whether we're venturing out to the farthest reaches of our solar system or exploring the mysteries of space and time, speed is the key.
  • Known Universe: The Known Universe
  • Known Universe: To the Extremes
    We explore the two most daunting frontiers left in science, the deep ocean and deep space. Exploring both could give us answers and insights into some of humanity's most vexing questions…is there life elsewhere in the universe, how did the Earth come to be, how did life originate and what is the ultimate fate of the universe.
  • Known Universe: Is Anyone Out There
    Are we alone in the vast expanse of the universe? In this episode of Known Universe we're on the hunt for life in the cosmos. We'll take a look at the incredible discoveries and technological advances scientists are utilizing about where life might exist both on - and off - our home planet.
  • Known Universe: Timb Bombs
    In the history of our planet, nothing has been as deadly as earthquakes and volcanoes. And no one knows when Mother Nature will unleash her fury again. But Earth isn't alone. Planets, moons, and stars are all at risk of violent upheaval.
  • Known Universe: Stellar Storms
    In this episode, we'll take you into the heart of the universe's biggest super-storms. The heat, wind, lightning, tornados, and hurricanes that can change landscapes and lives in a heartbeat. But when we travel out into space, we'll see that Earth's weather is nothing compared to other planets.
  • Known Universe: Star Gates
    In this episode, we bring the most intense smashups in the cosmos to life. We'll start by showing the collisions that created our planet and even our moon.
  • Known Universe: Collision Course
    In this episode, we bring the most intense smashups in the cosmos to life. We'll start by showing the collisions that created our planet and even our moon.
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