Wow interesting questions.

Who is an alien? An alien can be term a stranger in a land, and the Bible says we are pilgrims here on earth, strangers we are.we are the aliens on earth not those science fiction we watched.

We are created by God for a reason and purpose and the world is created and own by him. We are put here on earth by God because he chooses us and wants us to fulfill our destiny.

We came out from God and he lives in heaven and we are here for an assignment.

Earth is not our home,we are from a distant country called heaven.

So human beings are aliens here on earth.