A literal handful of helium-3 has been priced at around $20 million based on investor valuations.
Notes on verification
Multiple outlets (Newsweek, SpaceNews, Space.com, Lowy Institute) cite the $20 million/kg figure, but all trace back to a single primary source—Interlune CEO Rob Meyerson—rather than independent valuations, so corroboration is broad but not deeply independent. [tier=unverified indep_score=0.3 clusters=4 claim_tier=notable] [rescored 2026-09-15: curated origin-host map (PR #65); unclassified hosts no longer scored as aggregators]
Sources
- Inside NASA's audacious plan to build a nuclear-powered ... (seed:science_and_space)
- https://www.newsweek.com/interlune-lunar-mining-helium-3-moon-2103195 (corroboration)
- https://spacenews.com/interlune-plans-to-gather-scarce-lunar-helium-3-for-quantum-computing-on-earth/ (corroboration)
- https://www.lowyinstitute.org/the-interpreter/real-battle-moon-s-resources-here-earth (corroboration)
- https://www.space.com/astronomy/moon/mining-the-moon-can-you-make-money-harvesting-helium-3 (corroboration)