Researchers have found evidence suggesting there may be significantly more water on the moon than previously thought, with some studies indicating it may have been collecting at the moon's south pole for over a billion years. This discovery has sparked interest in returning to the moon, with potential applications including making rocket fuel and oxygen from lunar resources. The presence of water on the moon could also have implications for the search for life beyond earth, although its relevance to other celestial bodies, such as europa, is unclear.