What will happen if we contact an alien civilization and, after some years, they respond with the reply of approaching Earth in the next 800 years? What will humanity do if aliens say they are coming to Earth? Find out in this video.
Inspiration - 3 body problem (Netflix)
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Footage - ESA/NASA
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Негізгі бет Will human civilization ever encounter aliens? What Happens If Alien Ships Reach Earth?
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