Stephen Hawking WARNING: Aliens could DESTROY us if we find them STEPHEN Hawking warned in his final book we should be wary of contacting a more advanced life form from elsewhere in the universe as they could destroy our civilisation. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Netherlands Dispatch: Fighting Dementia With Memories of Childhood and Happy TimesEgypt sarcophagus: What happened to ancient mummy inside ‘CURSED’ tomb?Ice on the Surface of the Moon? Almost Certainly, New Research ShowsSquare Feet: If Food Is Medicine, These Are the LabsCelestial phenomena STEVE is completely UNKNOWN to science – shock studyCalifornia earthquake warning: 6.3 magnitude quake rocks US East Coast amid Big One fears