Scientists Find A Way To Unlock Water From Moon Dust

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The Chang'e-5 mission collected lunar soil samples in 2020 (Credit: CCTV/ CC-BY-SA-2.0)

Water is crucial for setting up a human base on the Moon. But if researchers at the Chinese Academy of Sciences succeed, this will no longer be a hurdle. They have found a way to produce large amounts of water using the hydrogen in lunar soil.

For their study, Professor Junqiang Wang and his team used lunar soil samples collected during the Chang'e-5 mission in 2020. They used concave mirrors to focus sunlight onto the dirt, heating it to over 1,700°F (926°C). This intense heat caused a chemical reaction between the hydrogen and other elements in the soil, releasing water vapor. The vapor was then collected and condensed into liquid water.

A sample of the lunar soil collected during the Chang'e-5 mission (Credit: CCTV/ CC-BY-SA-2.0)

Even more exciting, heating just one gram of the lunar soil produced 51 to 76 milligrams of water. Scaled up, one ton of Moon dirt could produce over 100 pounds (45 kg) of drinkable water. This is enough to sustain up to 50 astronauts daily.

Beyond drinking water, the extracted water could support plant growth in lunar greenhouses. This would ensure a reliable food source for long-term missions. Additionally, astronauts could split water molecules into oxygen and hydrogen. The oxygen could be used for breathing and the hydrogen as rocket fuel.

The amount of water extracted could sustain up to 50 astronauts daily (Credit: Junqiang Wang et. al/ CC-BY-SA-2.0)

The researchers, who published their findings in the journal Innovation in late 2024, still face some challenges. Since the method depends on solar energy, water extraction would only be possible during the two-week-long lunar day. It would completely halt during the lunar night, which lasts just as long.

Water production would also vary by location due to differences in soil composition. The team hopes to test their method on samples collected from various lunar regions during future missions. If these hurdles can be overcome, the ability to produce water on the Moon could be a game-changer. It would reduce costs and make long-term lunar exploration more feasible.

Resources: Sciencedaily.com, Zmescience.com, Reuters.com

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