History Channel - How the World Ends (2017) Part 6 Alien Invasion
Throughout history, people have prepared for the apocalypse. This series focuses on the different threats that may bring about the end of humanity. How the World Ends covers worldwide theories on the end of the world from Nostradamus prophecies, celestial armageddon, killer bacteria, virus epidemics, nuclear threats and biblical prophecies. How the World Ends takes a closer look at the people, the science and the history surrounding each theory's impending countdown to destruction.
Part 6 Alien Invasion
With the recent discovery of thousands of Earth-like planets in the universe, the search for intelligent alien life continues. Some astronomers warn that when we find it, we should be prepared for an advanced hostile extraterrestrial species capable of, and intent on, wiping out planet Earth with superior weapons and technology.
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