In popular cultures, "Extraterrestrials" are life forms — especially intelligent life forms— that are of extraterrestrial origin (often also called "aliens").
Famous quotes containing the word life:
“The more the development of late capitalism renders obsolete or at least suspect the real possibilities of self, self- fulfillment and actualization, the more they are emphasized as if they could spring to life through an act of will alone.”
—Richard Dean Rosen (b. 1949)