your mind , a day will come in another 40 yrs ,remember ufo s are nothing but us airforce planes obtained from aliens by negotiation.you will see them acquiring the whole world, right now they are trying to reverse engineer them , so that they can build new ones, remember the solar storm in russia it was nothing but ufo shot down by migs (they were ordered to shoot down them) only hitng they were not expecting was that they were being run by nuclear engines thats the reason the explosion was similar to nuclear bomb, you can check the net there are no signs of vegetation at that site till date
