because they might be bad, and destroy us for earth so they can live there
First we have to know whether or not they exist.
IF they exist it will be either good or bad depending on their attitude and goals.
There is no proof that aliens exist. I believe there is no such thing as aliens. Has anyone seen an alien ship? Has anyone seen an alien? No.
Nothing. There are no aliens known to exist.
If space aliens do indeed exist, they exist for the same reasons we exist. Whatver those reasons may be.
There is no evidence that aliens exist therefore the biology of aliens, if they do, is unknown
Nobody knows the answer to this question because nobody knows if aliens actually exist.
No
aliens, Might exist but their are rumours that they probe people.
its not that u are cray if u think aliens exist ,if someone says the exist and someone says they dont exist , just respect there answers
If we were there, we would be aliens. If they were here, they would be the aliens. Depends on the type of alien.
I don't think they eat anything. You have to exist to need food, and no aliens are as yet known to exist.