Alien life in all shapes and size exists somewhere out there in the depths of space, at least according to the Fermi Paradox. The theoretical principal stipulates life has to exist in a universe full of infinite stars and planets, most of which are older than our Earth and solar system. Proposed in the 1970s and named after the physicist Enrico Fermi, the paradox estimates the probability intelligent alien civilisations exist even if we have never seen proof. However, even if evidence of alien life exists somewhere out there in space, odds are humans will destroy it before we even realise.Obviously, this guy hasn't read much science fiction. To read more, click here.