A quote from Hawking
"We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet," Hawking said. "I imagine they might exist in massive ships, having used up all the resources from their home planet. Such advanced aliens would perhaps become nomads, looking to conquer and colonise whatever planets they can reach."
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The only reason we need these super space telescopes is so we can arm ourselves to the teeth when the aliens start invading. That is also the real reason why every country is stockpiling nukes.
*adjusts tinfoil hat*