Billosaur writes "With the recent announcement of Google's X-prize for a successful private landing of a robot on the Moon, someone has asked the Explainer at Slate.com if permission is required to land something on the Moon? Turns out that while there is no authority that regulates landing objects on another world, getting there does require the permission of the national government from where the launch takes place. This is in accordance with the 1967 Outer Space Treaty, signed by 91 nations, which regulates the uses of outer space by the nations of Earth. Specifically, Article VI enjoins: 'The activities of non-governmental entities in outer space, including the Moon and other celestial bodies, shall require authorization and continuing supervision by the appropriate State Party to the Treaty.' Start your paperwork!" J adds: The relevant quote from Destination Moon is "If we ask for permission, they'll find a way to block us. So we go now, as soon as we can!"