Are you serious? The snake is to blame? You can not imagine the damage that some films currently on cinemas and TV screens can do! Zombies, sub-humans, the man from Sirius - the planet Sirius not the country Syria- they all come and go to Gaia, commonly known as Earth, with spaceships and other spectacular means of transportation and so far, fortunately, all they to do is look for a place to park.
And we, the natives of this small planet, enjoy every night the view of a space lighten with stars, whispering: OMG, what miracles you can create when you are in the right mood!