Alien invasion

The alien invasion or space invasion is a common feature in science fiction stories and film, in which extraterrestrials invade the Earth either to exterminate and supplant human life, enslave it under an intense state, harvest people for food, steal the planet's resources, or destroy the planet altogether.


The alien invasion or space invasion is a common feature in science fiction stories and film, in which extraterrestrials invade the Earth either to exterminate and supplant human life, enslave it under an intense state, harvest people for food, steal the planet's resources, or destroy the planet altogether.
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