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KNOWN UNIVERSE
- Wednesday 30 May 2012 at 9:00PM
- National Geographic Channel
Giant Asteroid
If a giant asteroid plowed into our planet, it would have devastating effects. The explosive power of a cosmic impact could be enough to wipe out civilization. But what are the odds we’ll get hit by one of these cosmic killers any time soon?
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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 o...
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LIGO's Joseph Giaime
Joseph Giaime discusses how LIGO (Laser Interferometer Gravitational Wave Observatory) works.
(03:10) - All Videos
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Greatest Tank Battles
The Battle of Normandy
Thursday 24 May 2012 at 7:00PM
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Locked Up Abroad
Kidnapped in the Philippines
Thursday 24 May 2012 at 9:00PM
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Alaska State Troopers
Alaska State Troopers - 306
Thursday 24 May 2012 at 10:00PM
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Ice Pilots NWT
Top of the World
Friday 25 May 2012 at 7:00PM
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Built for the Kill
White Sharks
Friday 25 May 2012 at 9:00PM
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