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Scientists think we can hide Earth from aliens. Here's how

It's a big universe out there and if we have any neighbors, it might be better if they left us alone, and one pair of ...
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If an alien attack fleet were to appear in Earth's orbit, the ultimate weapon would be a 'nuclear submarine equipped with a laser'

Iron Sky ' in which alien invaders use their technological capabilities to attack Earth from outer space appear in many science fiction works. However, it is believed that modern science has no means ...