Nadir is employed during remote sensing of the atmosphere, as well as when an astronaut faces the Earth while performing a spacewalk. The term nadir can also be used to represent the lowest point reached by a celestial body during its apparent orbit around a given point of observation. This can be used to describe the location of the Sun, but it is only technically accurate for one latitude at a time and only possible at the low latitudes. The sun is said to be at the nadir at a location when it is at the zenith at the location's antipode
To be, or not to be to make a point about "extremism in defense of liberty." P.D. James' dystopian novel "The Children of Men" (1992) refers to expected or forced mass suicides of the elderly as "Quietus". The film adaptation "Children of Men" (2006) portrays a self-administered home suicide kit, labelled "Quietus". "Star Trek"'s was named after the "Undiscovered Country" line from this soliloquy. References are made to Shakespeare during the film including Klingon translations of his works and the use of the phrase "taH pagh, taHbe' ", roughly meaning "whether to continue, or not to continue [existence]." The book (and later film) "What Dreams May