Study maps the trace concentrations of water implanted in the lunar soil by the solar wind, a water source that could be used as resource in future lunar exploration. The signature of water is present nearly everywhere on the lunar surface, not limited to the polar regions as previously reported.

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Study maps the trace concentrations of water implanted in the lunar soil by the solar wind, a water source that could be used as resource in future lunar exploration. The signature of water is present nearly everywhere on the lunar surface, not limited to the polar regions as previously reported.