YES SIR THEY ( the aliens) been on earth from long time,as we see ,they been here,as long as our written history itched on the rocks on some caves around the world,my be earlier ,these nukes are like magnets to them. there are many types some are like over grown insects,came from different planets ,may be different galaxies. some I saw go through the wall some cannot.even a metal wall,is no problem for some species, I am an unfortunate abductee, I saw some of what they can do, by the way some more advanced species abduct less advanced ones, but all are very advanced .