Chinese Scientists Develop Technique to Extract Water from Moon's Soil for Lunar Research Base
Key Ideas
  • Chinese scientists have devised a method to extract water on the moon by harvesting hydrogen and oxygen from lunar soil, a breakthrough for potential lunar research bases.
  • The technique involves using lunar soil's minerals, particularly ilmenite, to generate water through chemical reactions at extreme temperatures, with 1 gram of soil capable of producing 51 to 76 milligrams of water.
  • The extracted water could be used for drinking purposes, while the iron by-product from the process could serve as raw material for electronic equipment, and the melted lunar soil as a construction material for lunar bases.
  • Further feasibility studies are required to validate the viability of this method, but it is deemed highly practical and could revolutionize the construction of future lunar research stations and space stations.
Chinese scientists have made a significant stride in lunar exploration by developing a method to extract water from the moon's soil, potentially paving the way for the establishment of lunar research bases. The breakthrough technique involves harnessing hydrogen and oxygen from the lunar soil through chemical reactions at exceptionally high temperatures. Researchers from the Chinese Academy of Sciences studied lunar rocks brought back by China's Chang'e-5 probe in 2020, discovering that minerals in lunar soil, especially ilmenite, contain substantial amounts of hydrogen due to prolonged exposure to the solar wind. By heating the soil, hydrogen reacts with iron oxides to produce water, iron, and ceramic glass. This process also involves melting the lunar soil, releasing water vapor at temperatures above 1,000 degrees Celsius. A gram of lunar soil can yield 51 to 76 milligrams of water, indicating that a tonne of soil could produce about 50 liters, sufficient for 50 people in a day. The researchers propose using sunlight focused through concave mirrors to heat the soil until it melts. The iron by-product could be utilized for electronic equipment, and the molten soil for construction purposes on the moon. Although further feasibility assessments are needed, the Chinese Academy of Sciences deems this method highly practical and anticipates it to serve as a foundational design for future lunar and space stations. This discovery aligns with ongoing efforts to explore lunar water resources, with upcoming missions like Russia's Luna 26 orbiter and China's Chang'e-7 mission aiming to continue the quest. NASA, despite canceling the Viper lunar rover, remains committed to exploring lunar water sources. The significance extends beyond lunar missions, as researchers suggest potential future use of lunar water as fuel for deep space missions, unraveling insights into the Earth-moon system's formation and the broader solar system.
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