See Article II
Outer space, including the Moon and other celestial
bodies, is not subject to national appropriation by
claim of sovereignty, by means of use or occupation,
or by any other means.
- - - - - - -
space cannot be subdivided into national “colonies,” in the manner of 19th century European powers. But there is a difference between appropriation of territory (in this colonial sense) and appropriation of mineral resources, as occurs in commercial mining-and OST says nothing in particular about the latter.