My prediction is that the nearest alien neighbors live in feces and food scrap left on the Moon by the six Apollo missions. Even though it?s been three decades, there is a good chance that hearty bacteria live and can reproduce inside encapsulated small damp places and survive the monthly cycles of heat and cold as well as the effects of solar flares, ultraviolet light, and hard vacuum.
http://www.space.com/scienceastronomy/rare_earth_2_020717.html
