no, and they probably never will
It is impossible to tell.
There is no need to worry; in real life there is no evidence, let alone proof, that there are any aliens. Someone has to be the first form of intelligent life in the universe, and there is no reason to believe it isn't us.
its a maybe we don't no yet by Joel Fraga
Odds are against it. The odds of aliens would be greater vs dinos.
If by 'aliens' you mean intelligent extra-terrestrial beings, there is no plausible evidence that any have ever visited Earth. However, with billions of planets in the universe, it would be arrogant of us to believe that we are alone, as the only intelligent life forms that ever evolved. There must be 'aliens' out there.
Why would you ask this question we have people in this world that are really smart and they could probably invent a machine or a gun or something that could kill the aliens but of coarse EVERYONE knows that they are not going to attack us maybe cause they are too afraid I dont know.
Aliens from another world don't have to be dangerous. They might not even seem hostile to us if we ever come to their world or if they ever come to ours. It's a joke people spread that aliens sound spooky and say, "Take me to your leader."
no
Aliens from another world don't have to be dangerous. They might not even seem like monsters to us if we ever come to their world or if they ever come to ours. It's a joke people spread that aliens are green and say, "Take me to your leader."
are aliens different then us? yes because aliens are a strange foriegn
aliens are supposed have one brain like humans but we really never know cause most of us have never aliens before so its up to you to decide what you think
Aliens.