Aliens are something that people do not know what they are can do. They could easily kill someone. They come from another planet and people fear that. The unknown makes people afraid. Also, both the humans and aliens are scared of each other. Each side doesn’t know what the other side is capable of. In the movies, aliens are shown to have enormous strength and people don’t know how to defend themselves against aliens.
Aliens in the movies are shown to come in big spaceships and they want to take over the Earth. They always seem to have some sort of weapons that can completely wipe out a total population. If someone encounters one alien, people are still scared because they don’t know how to interact with it.
