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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 Art of Russia
The Art of Russia

   2009    Art
Nature Great Events
Nature Great Events

   2009    Nature
The Real History of Science Fiction
The Real History of Science Fiction

   2014    Technology
How Earth Made Us
How Earth Made Us

   2010    Science
Meet the Romans
Meet the Romans

   2012    History
The Story of Science
The Story of Science

   2010    History
Chased by Sea Monsters
Chased by Sea Monsters

   2003    Science
Conversations with Dolphins
Conversations with Dolphins

   2016    Science