Buying Land on the Moon

[KarenH]

As I recall, when our American astronauts landed on the moon, they left a U.S. flag there. That used to mean that a country was claiming the land; symbolically, it seems to me to imply the same thing these days, too. So is someone telling me the U.S. doesn't own the moon? Who says? Who does the U.N. think it is, anyway, and whoever does what it says? And who gave the U.N. authority to do anything?