
With the exception of a few Moon landings, as far as Earth-bound life is concerned, our closest neighbor has remained utterly lifeless for as long as we've known. As our species overheats and pollutes the planet (but at least can make some entertaining movies about it), our celestial companion has presumably remained as dead as the very Cold War that started the Space Race.
At the core of all these theories is a simple fact: The area in the lunar South Pole region has conditions that could potentially sustain life.