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What Have UFOs Done for Us

   2015    Culture
From unexplained flashes in the night sky to flying saucers, this episode delves into the mysterious world of UFOs. How our drive to explain these bizarre phenomena, and desire to discover little green men, has in fact transformed our understanding of the universe
Series: The Sky at Night

UFO the Real Deal

   2011    Technology    3D
Many argue that flying saucers and other extra-terrestrial space ships continuously visit the earth. If that were true, what kinds of technologies would such alien spacecraft require? And do eyewitness reports of UFO sightings jibe with modern theories of how interstellar travel might be possible? Authors, astronomers and theoretical physicists weigh in with the blueprints for inertia-canceling devices, nuclear-powered craft, antimatter propulsion systems and even warp drives. Based on Einstein's theories and countless scientific studies, we'll find out how these visitors might bridge the vast distances between the stars. And if they could survive such hazardous journeys, are they flesh and blood or intelligent machines?

The Story of India
The Story of India

   2007    History
The Art of Russia
The Art of Russia

   2009    Art
In Search of Beethoven
In Search of Beethoven

   2009    Art
How Earth Made Us
How Earth Made Us

   2010    Science
Blood of the Vikings
Blood of the Vikings

   2001    History
Roman Empire: Reign of Blood
Roman Empire: Reign of Blood

   2016    History
Dark Net
Dark Net

   2016    Technology
Africa with David Attenborough
Africa with David Attenborough

   2013    Nature