Scientists believe that the ETs may have sent DNA materials to earth through a process called "directed panspermia".
Scientists May Have Found Proof Of Aliens Creating Life On Earth—Report http://au.ibtimes.com/scientists-may-have-found-proof-aliens-creating-life-earth-report-1423011 http://au.ibtimes.com/scientists-may-have-found-proof-aliens-creating-life-earth-report-1423011 Scientists May Have Found Proof Of Aliens Creating Life... http://au.ibtimes.com/scientists-may-have-found-proof-aliens-creating-life-earth-report-1423011 Scientists have discovered mysterious metal object that is believed to be an evidence of aliens existing on earth. View on au.ibtimes.com http://au.ibtimes.com/scientists-may-have-found-proof-aliens-creating-life-earth-report-1423011 Preview by Yahoo