Yes, aliens do exist, but there is some clarification that must come first before concerning what Ты mean by aliens. Aliens do exist and if Ты want a wide interpretation of the word alien, including all living consciousness that are NOT you, not residing near Ты или of the same grouping as yourself, then we would open a Pandora's Box and this Статья would need to be as long as an entire book.

Everything Ты perceive from earth, rocks, insects, trees, Цветы and humans is composed of living consciousness, not of course of your same level of comprehension, but living matter nevertheless. Fortunately...