The History of Alien Invasions | SYFY WIRE

Aliens invading or attacking Earth is commonplace in science fiction, but where did it come from? And how has it evolved over time? Find out. ►►Subscribe To SYFY Wire: More About Alien Invasions: The alien invasion is a usual part of science fiction stories and film, in which extraterrestrials invade Earth either to exterminate and supplant human life, enslave it under a colonial system, to harvest humans for food, steal the planet’s resources, or destroy the planet altogether. The invasion scenario has been used as an allegory for a protest against military hegemony and the societal ills of the time. H.G. Wells’ novel The War of the Worlds extended the invasion literature that was already common when science fiction was first emerging as a genre. Prospects of invasion tended to vary with the state of current affairs, and current perceptions of threat. Alien invasion was a common metaphor in United States science fiction during the Cold War, illustr