i dont think aliens have bin on earth yet

ok ,stands back, CRIES why ow why ow why

I think not, our existence in the universe have only been a few billions of years, that's nothing in the time scale of the universe, and we need to be here much more time for some other civilization to spot us in such a small planet.

The likelihood that aliens at the right stage of technological development and from close enough to be able to reach earth, have coincidently come here within the past 10,000 years or so is so astronomically remote as to be nil.

I 'm sure there has been visits; recorded history is full of events of visitation by higher beings.

why would they visit us we are in the end evil and probably they now this

Earth is a great planet, full of life and resources, surely they would have some use of it.