{"version":1,"dataset":"lunar-resources","count":8,"generatedAt":"2026-05-28T15:17:41.038Z","docs":"https://spaceodysseyhub.com/moon/methodology","license":"Data structure © SpaceOdysseyHub. Underlying facts public domain (agency primaries). Cite SpaceOdysseyHub + original source.","entries":[{"slug":"water-ice-psr","name":"Water ice (south polar permanently shadowed regions)","category":"volatile","location":"Permanently shadowed regions (PSRs) at the lunar south pole — Cabeus, Shackleton, Faustini, Haworth, Shoemaker craters","estimatedQuantity":{"value":"5.6 ± 2.9 wt%","asOf":"2009-11-13","sourceIdx":0,"note":"LCROSS impact ejecta plume analysis at Cabeus crater. Mass concentration of water in regolith. M3 mapping (Chandrayaan-1, announced 2018) confirms multiple surficial ice deposits in PSRs."},"utilizationStatus":"prospecting","skepticNote":"Surficial ice is patchy and of low abundance; LCROSS measured one impact at one site. Subsurface concentrations and geotechnical accessibility remain unknown — PRIME-1 attempted to drill on IM-2 in March 2025 but landed sideways. Cabeus is at -157°C, requiring power-hungry thermal extraction.","description":"Highest-value lunar volatile. Confirmed by NASA LCROSS impact (Cabeus crater, October 9 2009) and surface mapping by ISRO Chandrayaan-1's Moon Mineralogy Mapper (M3). Targeted by Chandrayaan-3 (Vikram landing 23 August 2023, 69°S), IM-2 PRIME-1 (March 2025), Chang'e 7 (2026 NET), and LUPEX (2028 NET). Water becomes propellant (LH2/LOX) and life support.","sources":[{"url":"https://science.nasa.gov/moon/moon-water-and-ices/","publisher":"NASA Science","retrieved":"2026-05-28"},{"url":"https://science.nasa.gov/mission/lcross/","publisher":"NASA","retrieved":"2026-05-28"},{"url":"https://www.sciencedirect.com/science/article/abs/pii/S0019103520304322","publisher":"Icarus (peer-reviewed)","retrieved":"2026-05-28"}],"confidence":"high","lastVerified":"2026-05-28"},{"slug":"helium-3","name":"Helium-3 (³He)","category":"isotope","location":"Globally distributed in surface regolith; higher concentrations in mature regolith on the lunar maria","estimatedQuantity":{"value":"4 ppb average; up to ~10 ppb (2-26 ppb range in Apollo/Luna samples)","asOf":"2024-XX-XX","sourceIdx":0,"note":"Concentrations vary widely with regolith maturity and titanium content. Total lunar inventory often quoted as ~1.1M tonnes, but extraction TRL is very low."},"utilizationStatus":"theoretical","skepticNote":"**No commercial fusion reactor exists.** D-³He fusion has higher ignition temperature than D-T fusion, and D-T fusion has not yet achieved commercial breakeven. At 4 ppb average concentration, extracting 1 kg of ³He requires processing ~250,000 tonnes of regolith. Earth-side ³He from tritium decay costs ~$20M/kg today — substantial but not 'unobtainable.' SpaceNews has called helium-3 marketing 'separating market from marketing.'","description":"Solar-wind-implanted isotope unique to airless bodies. Theoretical fusion fuel that produces no neutrons (clean aneutronic fusion). Interlune (US) and others have raised funds on the thesis. Current applications: medical imaging (MRI), neutron detection, cryogenics — all served adequately by Earth-sourced ³He from tritium decay or natural-gas fields.","sources":[{"url":"https://spacenews.com/lunar-helium-3-separating-market-from-marketing/","publisher":"SpaceNews","retrieved":"2026-05-28","quote":"The scientific and technological promise of helium-3 fusion is undeniably compelling, yet the economic feasibility of lunar mining remains a formidable challenge, requiring advanced excavation, processing, and transportation infrastructure. The vision of a self-sustaining lunar economy is concrete for well-characterized resources like solar energy and regolith for construction, but the picture gets murkier with helium-3."},{"url":"https://www.researchgate.net/publication/275593319_Lunar_Helium-3_Fuel_for_Nuclear_Fusion_Technology_Economics_and_Resources","publisher":"ResearchGate (peer-reviewed)","retrieved":"2026-05-28"},{"url":"https://www.ifri.org/en/media-external-article/helium-3-lunar-surface-nuclear-fusion","publisher":"Ifri (Institut français des relations internationales)","retrieved":"2026-05-28"}],"confidence":"high","lastVerified":"2026-05-28"},{"slug":"regolith-construction","name":"Lunar regolith (bulk construction material)","category":"regolith","location":"Ubiquitous across the lunar surface; depths typically 2-15 m","estimatedQuantity":{"value":"Effectively unlimited for construction at any single site","asOf":"2024-XX-XX","sourceIdx":0,"note":"Composition: ~45% O, ~21% Si, ~13% Fe, ~10% Ca, ~7% Al by mass (mare); highlands higher in Al + Ca, lower in Fe + Ti"},"utilizationStatus":"demonstration","skepticNote":"Sintering and 3D-printing demos at Earth gravity tell us little about lunar gravity (1/6 g) and vacuum behavior. Regolith dust is electrostatically charged, mechanically abrasive, and a known degradation risk for seals, optics, and crew lungs (per Apollo crew reports). ICON's Olympus demo NET 2026-2027 will be first in-situ proof.","description":"The Moon's structural building material. ICON's Project Olympus is developing Laser Vitreous Multi-material Transformation — high-powered lasers melt regolith into ceramic-like structures suitable for landing pads, radiation shields, and habitat shells. NASA awarded ICON a $57.2M contract for the technology. Demonstration mission targeted for 2026-2027 at the lunar south pole.","sources":[{"url":"https://www.iconbuild.com/newsroom/icon-to-develop-lunar-surface-construction-system-with-57-2-million-nasa-award","publisher":"ICON","retrieved":"2026-05-28"},{"url":"https://www.nasa.gov/directorates/stmd/nasa-enables-construction-technology-for-moon-and-mars-exploration/","publisher":"NASA STMD","retrieved":"2026-05-28"},{"url":"https://en.wikipedia.org/wiki/Lunar_resources","publisher":"Wikipedia (peer-edited)","retrieved":"2026-05-28"}],"confidence":"high","lastVerified":"2026-05-28"},{"slug":"kreep-rare-earth-elements","name":"Rare-earth elements + thorium/uranium (KREEP terrane)","category":"rare-earth","location":"Procellarum KREEP Terrane (PKT) on lunar near side, especially Oceanus Procellarum and Mare Imbrium ejecta","estimatedQuantity":{"value":"Lanthanum at 300-350× carbonaceous chondrite concentrations in KREEP","asOf":"2024-XX-XX","sourceIdx":0,"note":"K (potassium) + REE + P (phosphorus) acronym. Includes yttrium, cerium, lanthanum, rubidium (20-25 ppm), thorium, uranium. Lunar Prospector gamma-ray spectroscopy mapped Th distribution from orbit."},"utilizationStatus":"theoretical","skepticNote":"Lunar REE enrichment is *relative* to other lunar regions — absolute concentrations are still parts-per-million scale and lower than terrestrial REE ores. China and Australia produce REEs at $10-100/kg ranges; even speculative lunar prices are $1,000+/kg delivered to Earth. Economic viability requires either: (a) in-space utilization (no transit cost), or (b) a global REE export ban from Earth producers. Neither is imminent.","description":"Acronym for Potassium (K), Rare-Earth Elements, Phosphorus — geochemically anomalous material concentrated in the last lunar magma ocean fraction to crystallize. Source of lunar thorium + uranium signatures detectable from orbit. Of long-term interest for in-situ fission fuel + plant-growth nutrient potassium/phosphorus, not for Earth export.","sources":[{"url":"https://en.wikipedia.org/wiki/KREEP","publisher":"Wikipedia (peer-edited)","retrieved":"2026-05-28"},{"url":"https://pubs.usgs.gov/fs/2025/3049/fs20253049.pdf","publisher":"USGS Fact Sheet (2025)","retrieved":"2026-05-28"},{"url":"https://en.wikipedia.org/wiki/Lunar_resources","publisher":"Wikipedia (peer-edited)","retrieved":"2026-05-28"}],"confidence":"high","lastVerified":"2026-05-28"},{"slug":"lunar-oxygen-isru","name":"Lunar oxygen via ISRU","category":"volatile","location":"Mare regolith (high ilmenite, FeTiO₃, content) preferred; ~45% of all lunar regolith by mass is oxygen","estimatedQuantity":{"value":"~316 kg O₂ per tonne ilmenite (FFC-Cambridge process)","asOf":"2024-XX-XX","sourceIdx":0,"note":"Hydrogen reduction of ilmenite (ROxygen, PILOT) yields 1-2 wt% O₂. FFC-Cambridge removes 100% of oxygen but at <50% current efficiency."},"utilizationStatus":"demonstration","skepticNote":"Note: MOXIE (oxygen demonstrator on Mars Perseverance) does NOT apply to the Moon — it splits CO₂ from Martian atmosphere. Lunar O₂ ISRU is harder: no atmosphere, energy-intensive solid-state chemistry, requires sustained power (which is itself a separate ISRU problem). No flight demonstration yet at lunar surface as of May 2026.","description":"By mass, ~45% of lunar regolith is oxygen, locked into oxides. Three production pathways: (1) hydrogen reduction of ilmenite (1-2% yield, simplest), (2) molten regolith electrolysis (Helios), (3) FFC-Cambridge molten-salt electrolysis (high yield, low efficiency). Oxygen is propellant (LOX) and life support. Israeli startup Helios + ICON + NASA Glenn all developing systems.","sources":[{"url":"https://www.uni-bremen.de/en/humans-on-mars-initiative/research/publications-1/publication-highlights-detail/system-analysis-of-an-isru-production-plant-extraction-of-metals-and-oxygen-from-lunar-regolith","publisher":"University of Bremen Humans on Mars","retrieved":"2026-05-28"},{"url":"https://www.sciencedirect.com/science/article/abs/pii/S0032063318304008","publisher":"Planetary and Space Science (peer-reviewed)","retrieved":"2026-05-28"},{"url":"https://lunarpedia.org/w/FFC_Cambridge_Process","publisher":"Lunarpedia (curated lunar resources reference)","retrieved":"2026-05-28"}],"confidence":"high","lastVerified":"2026-05-28"},{"slug":"iron-ilmenite","name":"Iron + titanium from ilmenite","category":"rare-earth","location":"Mare basalt regions, especially Mare Tranquillitatis (high-Ti basalts) — ilmenite (FeTiO₃) concentrations up to ~15% by mass","estimatedQuantity":{"value":"~368 kg Fe + ~316 kg Ti per tonne ilmenite (FFC-Cambridge)","asOf":"2024-XX-XX","sourceIdx":0,"note":"Byproducts of FFC-Cambridge oxygen extraction. Iron + titanium ratios identical to feedstock stoichiometry."},"utilizationStatus":"theoretical","skepticNote":"Lunar iron is for *in-space* use only — terrestrial iron costs ~$0.10/kg; lunar delivery costs are 5+ orders of magnitude higher. Even in-space, fabrication infrastructure (foundries, rolling mills, welding) does not yet exist on the Moon. Iron is a byproduct of O₂ ISRU, not a primary driver.","description":"Co-product of oxygen extraction from ilmenite. Iron is structural; titanium is for high-temperature applications. Theoretical use case: in-situ habitat fabrication or local manufacturing for further lunar/Mars infrastructure. Mare Tranquillitatis is high-Ti; Apollo 11 + Apollo 17 returned ilmenite-rich samples. Apollo 17 Camelot crater is a candidate ISRU site.","sources":[{"url":"https://www.sciencedirect.com/science/article/abs/pii/S0094576522006579","publisher":"Acta Astronautica (peer-reviewed)","retrieved":"2026-05-28"},{"url":"https://en.wikipedia.org/wiki/Lunar_resources","publisher":"Wikipedia (peer-edited)","retrieved":"2026-05-28"}],"confidence":"high","lastVerified":"2026-05-28"},{"slug":"lava-tubes-habitat","name":"Lava tubes (subsurface habitat real estate)","category":"real-estate","location":"Marius Hills pit (confirmed); other suspected pits at Mare Tranquillitatis, Mare Ingenii, Mare Smythii; Moon-wide candidates from skylight surveys","estimatedQuantity":{"value":"Marius Hills void extends ~60 km west of the visible skylight","asOf":"2017-10-17","sourceIdx":0,"note":"Combined Kaguya SELENE radar + GRAIL gravity data confirmed intact subsurface void in 2017."},"utilizationStatus":"theoretical","skepticNote":"Detected but unexplored — interior dimensions, structural integrity, dust, electrostatic charging, and atmospheric composition (radon? volatiles?) are all unknown. Surface access via 50-100 m vertical skylight drop requires landing and rappelling technologies not yet demonstrated. Marius Hills is far from south pole resources and Earth-line-of-sight comms.","description":"Hardened lava tubes from ancient volcanic flows — naturally shielded from radiation, micrometeoroids, and thermal extremes. Surface temperatures swing 127°C (sunlit) to -173°C (shadow); a few meters underground, temperatures stabilize at ~-20°C. Considered NASA's strongest candidate for long-duration crewed habitats. ESA's BR-LRD-CONOPS programme evaluates lava-tube descent architectures.","sources":[{"url":"https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017GL074998","publisher":"AGU Geophysical Research Letters (peer-reviewed)","retrieved":"2026-05-28"},{"url":"https://www.sciencedirect.com/science/article/pii/S0019103523003937","publisher":"Icarus (peer-reviewed, GRAIL update 2023)","retrieved":"2026-05-28"}],"confidence":"high","lastVerified":"2026-05-28"},{"slug":"peaks-of-eternal-light","name":"Solar power at 'peaks of eternal light' (south polar rims)","category":"energy","location":"Shackleton crater rim, de Gerlanche-Shackleton connecting ridge, and select southern polar high-ground sites","estimatedQuantity":{"value":"Up to 94% annual illumination at best rim sites; >90% at three collective points","asOf":"2014-XX-XX","sourceIdx":0,"note":"From LRO Lunar Orbiter Laser Altimeter (LOLA) topographic illumination modeling. NOWHERE on the Moon is 100% illuminated."},"utilizationStatus":"prospecting","skepticNote":"'Peak of eternal light' is misleading — nowhere on the Moon is 100% illuminated. Footprints of near-constant-light sites are small (square-meter scale), creating a 'lunar Manhattan' real-estate problem if multiple actors target the same rim points. The 6-8% shadow time still requires backup power (batteries or nuclear). Outer Space Treaty doesn't allocate exclusive site use.","description":"High-elevation rim sites at the lunar south pole that receive near-continuous solar illumination because the Moon's axial tilt is only 1.54°. NASA's draft architecture for the Artemis Base Camp anticipates power towers at these sites to feed PSR-interior ISRU plants and crew habitat via cable. Shackleton rim points have been mapped to ~94% annual illumination.","sources":[{"url":"https://en.wikipedia.org/wiki/Shackleton_(crater)","publisher":"Wikipedia (NASA-sourced)","retrieved":"2026-05-28"},{"url":"https://en.wikipedia.org/wiki/Peak_of_eternal_light","publisher":"Wikipedia (peer-edited)","retrieved":"2026-05-28"},{"url":"https://science.nasa.gov/resource/shackleton-craters-illuminated-rim-shadowed-interior/","publisher":"NASA Science","retrieved":"2026-05-28"}],"confidence":"high","lastVerified":"2026-05-28"}]}