Where is helium found on the moon?

Helium on the Moon, particularly helium-3, is primarily found in the lunar regolith, which is the layer of loose, fragmented material covering the Moon's surface. It is believed that this isotope is deposited by the solar wind, as the Sun continuously emits particles that include helium-3. Concentrations are thought to be higher in areas that have been exposed to solar radiation for extended periods, such as the Moon's poles and in permanently shadowed regions. This resource has garnered interest for potential use in future nuclear fusion energy generation on Earth.