Can I purchase the moon?

Could you elaborate on the feasibility of purchasing the moon? I've heard rumors of private space exploration companies aiming for lunar colonization, but is it truly possible for an individual or a corporation to buy the moon outright? Are there any legal frameworks or international treaties that govern the ownership of celestial bodies? Wouldn't such a purchase raise significant ethical and environmental concerns? I'm genuinely curious about the practicality and implications of this seemingly absurd question. Could you break down the challenges and possibilities?