Futurist blogger created an aspirational list of rules by which we should interact with any aliens we might encounter. Emphasis on the aspirational part...

We absolutely want private companies to go explore space and take paying customers with them, but we'll also need a fair bit of regulation.

If we're expecting tourists to visit the Moon, should we figure out how to protect Apollo landing sites from souvenir hunters and historical artifact collectors?

Technically, no one owns or can lay claim to the Moon. But if we start routinely staying on its surface, the law may need to change.