If we were there, we would be aliens. If they were here, they would be the aliens. Depends on the type of alien.
Aliens are persons that are not a citizen of your country. If you are in the US, a Canadian would be an alien. If you were a US Citizen in Canada, YOU would be an alien.
No.
The would have war with us
they would help us upgrade our technology
are aliens different then us? yes because aliens are a strange foriegn
they would either be peaceful and leave us alone or deadly and kill us.
One example of a science fiction plot is "first contact." How would be treat aliens from another planet? How would these aliens treat us?
The Aliens Among Us was created in 1969.
There are no such thing as aliens but if they are real then they can destroy the us
Well assuming there are other intelligent living creatures in the universe, they would refer to other intelligent living creatures in the universe (which can be us) as a word in their language that has the same meaning as aliens. So, yes, for other intelligent living creatures in the universe. But that doesn't mean if we didn't live on a planet we wouldn't be aliens. Because we would still be other intelligent living creatures in the universe for other intelligent living creatures in the universe. And yes, I used copy/paste for other intelligent living creatures in the universe. :) By the way, you refer to humans as "them". Doesn't that make you and alien for us? :P
I think that if there was aliens, we would know cause they would eat us. That's just what I think.