ALL OF THeM!! But seriously: We know of no planet except Earth with life on it in our solar system, and the conditions on other planets forbid advanced life. There are planets belonging to other suns, but they are very far away, and we have no information about life on them. It is extremely unlikely, but not impossible, that aliens from other solar systems have visited our solar system.
None that we are currently aware of.
No known planets have aliens.
aliens live in space
no
i believe in aliens because their is billions of planets in the universe that their could be aliens on a planet
We have not yet made contact with any aliens.
yes there is such things as aliens
Another country or planet
Aliens
aliens did that
the aliens will come to save us when the world ends
No there is no life forms on planet Boot
We are not aware of any aliens on Mars or anywhere else.