Since the time I discovered that I can already think on my own, yes it is not just recently ;-), there is a lot of curiosity about ourselves as human living alone in the universe… We called the other species not from our planet as “Aliens”, well, there were documented events proving that indeed there were other lifeforms besides us!!! According to Wiki, by definition, Alien or Extraterrestrial life is life that does not originate from Earth. It is also called alien life, or, if it is a sentient and/or relatively complex individual, an "extraterrestrial" or "alien" (or, to avoid confusion with the legal sense of "alien", a "space alien"). These as yet hypothetical forms of life range from simple bacteria-like organisms to beings far more complex than humans. The possibility that viruses might exist extraterrestrially has also been proposed. "Exobiology" or "astrobiology" is the development and testing of hypotheses