In a groundbreaking move, U.S.-based space resources startup Interlune has unveiled a full-scale prototype of its lunar excavator, designed to harvest helium-3 from the Moon’s surface. This initiative aims to supply Earth with this rare isotope, potentially revolutionizing clean energy and quantum computing sectors.
What Is Helium-3 and Why Is It Valuable?
Helium-3 is a non-radioactive isotope of helium, extremely scarce on Earth but more abundant on the Moon due to solar wind bombardment over billions of years. Its significance lies in its potential use in nuclear fusion reactors, offering a cleaner energy source, and in quantum computing, where it serves as a coolant for ultra-low-temperature systems. Currently, helium-3 is priced at approximately $20 million per kilogram, reflecting its rarity and high demand
Interlune’s Lunar Excavator: A Technological Marvel
Developed in collaboration with industrial equipment manufacturer Vermeer Corporation, Interlune’s excavator is engineered to process 100 metric tons of lunar regolith per hour. The machine ingests the Moon’s soil, extracts helium-3 through a gaseous separation process, and returns the remaining material to the surface in a continuous cycle .GeekWire
Strategic Partnerships and Future Plans
Interlune has secured contracts with the U.S. Department of Energy and quantum computing firm Maybell Quantum for the supply of helium-3, with deliveries slated to begin by 2029. The company plans to send a prototype extractor to the Moon in 2027, aiming to establish a pilot processing plant by 2029. By the early 2030s, Interlune intends to scale up operations to deliver approximately 20 kilograms of helium-3 annually, translating to potential revenues of $400 million per year .
Challenges and Considerations
While the prospects are promising, Interlune’s venture faces significant challenges, including the development of reliable lunar landing and return systems, adherence to international space regulations, and the establishment of infrastructure to support sustained lunar operations. The success of this initiative could set a precedent for future extraterrestrial resource extraction endeavors.
