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How could lunar ice be used to support astronauts living on the Moon?
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Moon
(Left) Near side of Earth's Moon, photographed by the Galileo spacecraft on its way to Jupiter. (Right) Far side of the Moon with some of the near side visible (upper right), photographed by the Apollo 16 spacecraft.
Lunar ice, found in permanently shadowed regions at the Moon's poles, is a critical resource for supporting long-term human presence on the Moon. Its potential applications include:1
- Life Support: The ice can be processed to provide essential drinking water and breathable oxygen for astronauts.1
- Rocket Propellant: When split into its constituent hydrogen and oxygen, the ice can be used to produce fuel for spacecraft, potentially reducing the need to transport heavy supplies from Earth.1
Because launching payloads from Earth is costly and environmentally taxing, utilizing these local resources is considered vital for sustainable lunar exploration. From a long-term perspective, this ice is viewed as a limited but recyclable resource that could significantly enhance the feasibility of extended human residence on the lunar surface.1