life from another planet will visit earth

We've never been the only beings to call this Planet "home". 

Consider, that the bottom of the Pacific Ocean basin is about 6-7 Miles deep. 
Beneath the ocean floor is more than 1500 miles of very solid, and extremely protective, Earth's mantle. 

There is nothing that says that Aliens have not explored the depths of every inch of this Planet 
for tens-of-thousands of years before Man ever appeared. They can be anywhere, in or out of plain sight. 

Many morons will say that the Aliens' home planet is too far away, and that they can't be here yet. 

These are the words of cowards 
who will not be able to face a vastly superior race if-and-when they make themselves known. 

Aliens are here, and they've been here ... 
and when they choose to make that known, they will defend themselves against the idiots 
who will want to "shoot first”, call out for their 'christ', and then wonder how in the name of God, *they* got here. 

"One day, life from another planet" ... has already happened.

Life from other planets or distant objects has already visited, in the form of meterotite impacts in the early life of our planet. It has been suggested thet despite the intense heat generated on re entry, any life at the core of a frozen meterorite may have survived. It reaaly depends on your definition of the word 'Life'

I don't and hope not. I like the idea but we don't know how they get around. What if the land they get all jet legged and get all heavy since their mass was in space a long time. If gravity works with us it has to work with them. That they don't know how to get back to they're planet cause they're lost. It will be something if they have a different language. They won't know what were saying and need an ambassador or something not just us not knowing they're language not like there be one.

Not possible. Hope we don't waste resources on those fantasies 
The world should use those resources to help and empower the poor. 
Most of the areas where the poor people are living has enormous 
natural resources. We have a great responsibility as well as opportunities here 
than the outer space.