June 2026  ·  Space law

Who owns what you mine in space.

The Outer Space Treaty of 1967 is admirably short and, for its purpose, admirably clear. Article II forbids national appropriation of the Moon and other celestial bodies by claim of sovereignty, by use, by occupation, or by any other means. No flag plant makes a country an owner. For fifty years this was an abstraction. There was nothing to own.

There is now. Private landers reach the lunar surface, prospecting missions map ice at the poles, and the economics of extracting and using material in space — rather than lifting it from Earth — have stopped being science fiction. So the question that the treaty does not answer has become urgent: if a company cannot claim the ground, can it keep what it pulls out of the ground?

The permissive reading says yes, and points to an analogy in maritime law. No one owns the high seas, yet a fishing vessel owns its catch. Extraction is not appropriation. The United States wrote this reading into law in 2015; Luxembourg and the UAE followed; and the Artemis Accords now gather more than forty signatories around the same principle, adding the concept of operational 'safety zones' that look a great deal like exclusivity without using the word.

The restrictive reading says the distinction is a fiction. Exclusive use of a resource on a body no one may appropriate is appropriation by instalment. The states most likely to be left behind by a first-mover extraction regime hold this view, and they are not without a forum: the UN working group on space resources is the place where these two readings are, slowly, being made to meet.

For a client building toward an extractive operation, the point is not to predict which reading wins. It is to take a position that survives either outcome — choosing the jurisdiction whose national framework gives the most cover, structuring the venture so that an adverse multilateral turn does not unwind it, and, where possible, being in the room while the standard is drafted rather than waiting to be bound by it. The law here is not a constraint to be checked. It is a space to be occupied.

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