Alien Invasion. When Aliens Attack.
Scientists' view of what it would look like if Earth fell victim to an invasion by hostile aliens. What are our chances to survive in confrontation with a technologically superior force? National Geographic has the answers in their documentary "When Aliens Attack".
Can Humankind Survive Alien Invasion?
We have all seen those SF movies where aliens are not quite the friendly kind. The Alien series, War of the Worlds, Battleship, Pacific Rim, Species, Cowboys and Aliens… alien invasion everywhere, and the list goes on and on. For some reason Hollywood decided that it is more lucrative to present aliens as a threat rather than friendly species. A psychologist would probably say they are merely monetizing on the fact that we like to be scared.
In his popular lecture, “Life in the Universe”, Stephen Hawking asks: “What are the chances that we will encounter some alien form of life, as we explore the galaxy?”
If the argument about the time scale for the appearance of life on Earth is correct, Hawking says “there ought to be many other stars, whose planets have life on them. Some of these stellar systems could have formed 5 billion years before the Earth. So why is the galaxy not crawling with self-designing mechanical or biological life forms?”
Why hasn’t the Earth been visited, and even colonized? Hawking asks. “I discount suggestions that UFO’s contain beings from outer space. I think any visits by aliens, would be much more obvious, and probably also, much more unpleasant.”
If we should pick up signals from alien civilizations, Hawking warns,”we should be wary of answering back, until we have evolved” a bit further. Meeting a more advanced civilization, at our present stage,’ Hawking says “might be a bit like the original inhabitants of America meeting Columbus. I don’t think they were better off for it.”
Now, do governments around the world have contingency plans for a scenario in which, lured by our naive attempts at open communication, aliens do arrive yet instead of a handshake they offer global cleansing of humankind? What would such invasion by a more advanced, hostile civilization look like and would we stand any chance?
You can find the (surprising!) answers in this National Geographic documentary “When Aliens Attack”. Enjoy.
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