Scientists Discover Source of Water on Moon.

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Scientists have discovered that the most likely source of water on moon is the constant strean of charged particles from the sun known as the solar wind. The findings by researchers from the university of Michigan imply that ice inside permanently shadowed  polar craters on the moon, sometimes. called cold traps, could contain hydrogen atoms ultimately derived from the solar wind. 

Theoretical models of lunar water stability dating to the late 1970, suggest that hydrogen ions ( protons) from the solar wind can combine with oxygen on the moon's surface to from water and related compounds called hydroxyls, which consist of one atom of hydrogen and one of oxygen and are known as OH.

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Water and related compounds have also been detected in the lunar Regolith, the layer of fine powder and rock fragments that coats the lunar surface. however, the origin of lunar surface water has remained unclear. The study findings are published in the Journal Nature Geoscience.

source:- TOI