Researchers from the University of Hawai‘i at Mānoa are advancing the search for water ice on the Moon, a potential game-changing resource for future lunar missions. Water ice on the Moon could play a crucial role in establishing sustainable lunar habitats, providing water for astronauts and a potential source of hydrogen and oxygen for rocket fuel production. This makes the discovery and mapping of lunar ice a top priority for space agencies around the world. Li’s previous method suggested that the lunar surface contains between five and 30 percent water ice. The analysis of Shadow Cam images narrows the range—indicating that water ice makes up less than 20 percent of the lunar surface.