15,000 years of solar wind in four hours? A Seattle company gives it a go.

Key Points:

• The Moon's surface has accumulated helium-3 from the solar wind over billions of years, with concentrations higher than on Earth due to the lack of atmosphere and magnetic field.
• Helium-3 is considered valuable for potential future energy production through nuclear fusion, as well as for practical applications like ultra-low temperature cooling, medical research, and neutron detection.
• Companies such as Interlune are exploring the feasibility of mining helium-3 on the Moon but face challenges due to limited access to authentic lunar regolith for testing extraction technologies.
• Interlune developed a novel method to simulate lunar regolith by implanting ionized helium in a vacuum chamber, replicating 15,000 years of solar wind exposure in just four hours, to create a more accurate testing material.
• This enhanced simulant will be used to test helium-3 extraction hardware on Earth before lunar missions, improving the reliability of mining technology under Moon-like conditions.