Money on the Horizon! (Part 2)

The Economic Value and Environmental Conservation Potential of Helium-3 (He-3)

I will provide an in-depth analysis based on scientific data regarding the economic value of lunar resource development, specifically focusing on Helium-3 (He-3), and the feasibility of environmental preservation.

1. 💎 Detailed Economic Value Analysis of Helium-3

While Helium-3 is almost non-existent on Earth, it is estimated that over 1.1 million tons have been deposited on the lunar surface by solar winds.

① Energy Density and Economic Viability

• Energy Efficiency: Fusing 1 ton of Helium-3 (D-He3 reaction) generates approximately 100 Terawatt-hours (TWh) of energy. This is equivalent to roughly 12 million barrels of oil or 5 million tons of coal.
• Market Value: Considering the volatility of gas and electricity prices as of 2026, the value of Helium-3 is estimated to exceed $5 billion (approx. 6.5 trillion KRW) per ton.
• Substitution Effect: Around 100 tons of Helium-3 would be sufficient to meet the entire world’s annual electricity demand. This implies that just a few shuttle shipments could solve the global energy crisis.

② Return on Investment (ROI)

The biggest hurdle for lunar mining has traditionally been “transportation costs.” However, with the commercialization of reusable rockets like SpaceX’s Starship driving transport costs below $1,000 per kg, high-value resources like Helium-3 are now considered to have entered the break-even point.

2. 🌍 Will This Affect the Preservation of Earth and Moon’s Natural Phenomena?

This is a very sharp and important question. Let’s analyze this from two perspectives based on scientific data.

① Impact on Earth’s Natural Phenomena: “Virtually Negligible”

Some worry that changing the Moon’s mass might affect Earth’s tides.

• Mass Analysis: The total mass of the Moon is approximately 7.34×1022 kg. Even if humanity were to mine thousands of tons every year for tens of thousands of years, it would amount to less than 10−15% of the Moon’s total mass.
• Conclusion: The physical influence required to change the Moon’s gravity or orbital path enough to alter Earth’s tides or climate is essentially zero.

② Impact on the Moon’s Natural Phenomena: “Serious Scientific Concern”

The change to the Moon’s own environment is a much more significant issue than any impact on Earth.

• Exosphere Pollution: The Moon has a very thin atmospheric layer. Exhaust gases from mining equipment or dust generated during excavation could pollute this fragile atmosphere, potentially altering surface cooling efficiency or creating a micro-electrostatic atmosphere.
• Damage to Permanently Shadowed Regions (PSR): The PSRs at the South Pole, where water resources are concentrated, are “time capsules” preserving information from the early solar system. Heat generated during mining could sublimate this ice, causing billions of years of geological records to evaporate forever.
• Interference with Astronomical Observation: The “Lunar Far Side Observatory,” discussed by hubs like the Hawon Techno Campus, is a pristine zone free from Earth’s radio interference. Large-scale mining complexes could produce radio noise that would obscure humanity’s best “window into the universe.”

3. 🛡️ Conclusion: The Balance Between Preservation and Development

Lunar mining is the key to an energy revolution that could simultaneously solve Earth’s energy depletion and carbon emission issues. However, it carries the risk of damaging the Moon’s unique scientific value.

🚀 Core Strategies for Sustainable Development

1. Zoning System: Mining should be permitted only in specific regions, while key scientific sites at the South Pole and the far side must be designated as “Space National Parks” for preservation.
2. Eco-friendly ISRU: The mandatory adoption of electric-based mining robots with zero exhaust and dust suppression technologies (such as electrostatic shielding) is essential.

💡 Final Thought: In conclusion, while lunar resource mining can significantly contribute to preserving Earth’s ecosystem (by replacing fossil fuels), we risk leaving a damaged Moon to future generations unless an international agreement to respect the Moon as a “self-sustaining ecosystem” is established first.