Alien Invasion

An alien invasion? We have seen no evidence yet that extraterrestrials exist, much less that they plan to invade Earth. On the other hand, there have been hundreds of movies and books that portray different versions of the alien invasion scenario. Could an alien invasion happen, and what should humanity do to prepare?

Drake equation visualized by Carl Sagan.
Curiosity: Alien Invasion: Are We Ready? | Not the Only Game in Town
The Fermi Paradox — Where Are All The Aliens?
How to Defend Earth Against an Alien Invasion
How Would We Communicate with Alien Life? – with Carl Sagan
What an Invasion Of Aliens Could Look Like

Aliens in movies

Arrival Trailer (2016) – Paramount Pictures
Hitchhiker’s guide to the galaxy destruction of earth
Edge of Tomorrow – Creating the Mimics Shot Build

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