We do not know. We have not made contact with any aliens.
No. What makes you think that aliens need doors?
no, you'll need spardex aliens try putting to aliens together on there backs coverd in the slime they provide you
The aliens need to use earth's satellites so that they can coordinate their invasion efforts.
because they need to drive to mcdonalds
because of aliens
I don't think they eat anything. You have to exist to need food, and no aliens are as yet known to exist.
Legal aliens come from their country and take all the citizenship tests they need to. Meanwhile illegal aliens live in a foreign country without taking any of the citizenship tests.
An extension of natural human curiosity.
there is no need when the government is giving humans to aliens to study in the underground base in area fifty one
you all need water and sun
yes why not they are also living and need shelter