Stephen Hawking says aliens exist and probably want to kill us

Expecting any extraterrestrial visitors to be cute and cuddly like E.T.? You shouldn't be. If Stephen Hawking is right, it sounds as if the aliens who eventually drop by Earth will be far less friendly, Times Online reported.

In Hawking's new Discovery Channel series Into the Universe, the theoretical physicist suggests that rather than seeking out alien life forms, we should be hiding from them—at least until we've evolved to be able to defend ourselves against what's likely to be a more highly advanced species.

"We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet," said Hawking. "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 colonize whatever planets they can reach."

And what's likely to be the outcome of any such visit if we're not ready for it?

"If aliens ever visit us, I think the outcome would be much as when Christopher Columbus first landed in America, which didn't turn out very well for the Native Americans," said Hawking.

What do you think? When the aliens finally arrive, will they be friendly? Or will they be carrying a cookbook labeled To Serve Man?

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