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Last Updated: Monday June 27 2005 15:30 GMT

What would aliens look like?

People think this is a model of an alien that crash landed in Roswell, USA, in 1947
Ever since we realised there might be something out there our imaginations have created thousands of bizarre creatures but at the moment no one knows what an alien might look like.

But even if we do ever come across aliens in space, most scientists agree they probably won't look like little green men.

If aliens exists, experts reckon they're probably very small and look something like a bug.

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