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 band waked me with a serenade. How they improve! A fine band and what a life in a regiment! Their music is better than food and clothing to give spirit to the men.”
—Rutherford Birchard Hayes (18221893)