On March 28, scientists from the Chinese Academy of Sciences found a large number of water-impact glass beads in lunar soil samples brought back by Chang 'e-5, a "smart science fan" reported.
Further study revealed that the beads were likely a massive lunar reservoir, estimated to hold as much as 270 billion tons of water. The research was published recently in the journal Nature Geoscience.
In the study, scientists from the Chinese Academy of Sciences proposed that impact glass beads are ubiquitous in lunar soil and are potential candidates for studying lunar soil water.
A detailed analysis of the water content of the impact sphere found that it acted like a sponge, trapping the moon's water, which is estimated to have contained 0.05%.According to this estimate, the moon's impact on the glass sphere could have contained as much as 270 billion tons of water.
Scientists believe there should be a reservoir in the lunar soil to maintain the water cycle on the lunar surface. But previous analyses of lunar soil couldn't explain the lunar surface water cycle,This means that the lunar soil must contain an unknown reservoir.
Their analysis suggests that the water is actually coming from the solar wind. The solar wind contains a large number of hydrogen nuclei that have lost electrons. When the solar wind hits the moon, it forms water with oxygen on the lunar surface and gets trapped in glass beads. The water on the surface of the moon is a very important lunar resource, which provides a foundation for the future lunar exploration missions and the development of the moon.
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