Absolute zero is a theoretical limit that is not thought possible to achieve.
Now I am the killer and the prey, a circle of a completely different kind, and my mouth has gone dry as the sterile air, my heart as cold: The temperature of true rage is absolute zero, and mine is deeper than the ocean, wider than the universe.
Rick Yancey -- The Infinite Sea
Madeleine L’Engle -- A Wrinkle in Time
The cold of interstellar space, thousands of degrees below freezing point or the absolute zero of Fahrenheit, Centigrade or Reaumur: the incipient intimations of proximate dawn.
James Joyce -- Ulysses
But the result was that about two hundred tiny bits of Star—ova alive and latent—were stored near absolute zero.