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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 Lost Pirate Kingdom
The Lost Pirate Kingdom

   2021    History
The Incredible Human Journey
The Incredible Human Journey

   2009    History
The Putin Interviews
The Putin Interviews

   2017    Culture
Rotten
Rotten

   2018    Nature
The Mind Explained
The Mind Explained

   2019    Medicine
The Brain with David Eagleman
The Brain with David Eagleman

   2015    Medicine
Planet Earth
Planet Earth

   2007    Nature