Who’s ready for a lunar vacation? A new analysis of a year-old experiment proves water is far more plentiful on the moon than previously thought. Last year, NASA slammed a spent-fuel rocket into a moon crater to kick up dust, proving the existence of water on earth’s nearest neighbor. “It’s really wet,” said Anthony Colaprete, a NASA scientist. Water was detected at levels twice as high as in the Sahara desert—up to a billion gallons—enough to produce drinking water, or rocket fuel, which could bolster the case for a manned moon base. Finding a source of water on the moon is essential, because a bottle of water shipped to the moon would run about $50,000 due to transportation costs, according to NASA.