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Depends if they can cloak their ships or if they can use stealth or not. Etc etc.

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Q: If aliens came to earth how close would they have to get before we noticed them?
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Are aliens close to earth?

Aliens have a great chance of being real, just not close to Earth. Aliens have a great chance of being real, just not close to Earth. we would get better xbox 360s and better connection


Were aliens here on Earth before mankind?

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