What is Helium-3 and could we get it from the moon?

Helium-3 is a rare and expensive isotope with a projected surge in demand. This increasing demand has led to proposals and plans for mining it directly from the Moon. The Moon is considered a potential source due to its abundance of Helium-3, which is implanted into its surface by solar winds over billions of years. Acquiring Helium-3 from the Moon could provide a significant source for future energy needs, particularly in fusion power research, and open up new opportunities for lunar resource extraction and space economy development. The high cost and scarcity on Earth make lunar mining an attractive, albeit challenging, prospect.