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Here Are 10 Crazy Theories People Have About Aliens

13/01/2015 14:55 GMT | Updated 13/01/2015 14:59 GMT

We have no proof that aliens exist and despite NASA's claim that we'll have discovered extra-terrestrials before 2040, the fact remains we're getting no closer.

Of course that hasn't stopped us from creating the our own theories, whether it's that we're all just being observed like zoo animals or that they're hiding among us.

Here are the top 10 alien conspiracy theories that'll have you enraged, confused or genuinely intrigued.