After Newt Gingrich’s proposal for a moon colony, what could be better than quoting Lysander Spooner (http://lysanderspooner.org/node/64) on a related topic:

“Our pretended treaties, then, being made with no legitimate or bona fide nations, or representatives of nations, and being made, on our part, by persons who have no legitimate authority to act for us, have intrinsically no more validity than a pretended treaty made by the Man in the Moon with the king of the Pleiades.”