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:
“Half life is over now,
And I meet full face on dark mornings
The bestial visor, bent in
By the blows of what happened to happen.
What does it prove? Sod all.”
—Philip Larkin (1922–1986)