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Loading contentA 1979 agreement declaring the Moon and its natural resources the common heritage of mankind and calling for an international regime to govern their exploitation. It has been ratified by only a handful of states, none of them major spacefaring powers, which limits its force.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.