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:ScienceTake: Of a Frog’s Slap Shot and SalivaThe Power of Frog SpitScott Pruitt Is Seen Cutting the E.P.A. With a Scalpel, Not a CleaverReincarnation is REAL as consciousness is contained in the UNIVERSE after deathCave Squeaker, Rare Frog Last Seen in 1962, Is Found in ZimbabweTECH BREAKTHROUGH: Scientists see location of 23,000 atoms in huge PC boost