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:
“This is the day His hour of life draws near,
Let me get ready from head to foot for it
Most handily with eyes to pick the year
For small feed to reward a feathered wit.”
—Allen Tate (1899–1979)