It's important to understand that the Moon has been known to humans for as long as we have existed. It's a prominent feature in our night sky, visible to the naked eye. Therefore, there is no debate or "discovery" of the Moon in the sense of finding something previously unknown.

However, there are some arguments around the historical understanding and interpretations of the Moon:

* Ancient beliefs: Some ancient cultures had varying beliefs about the Moon, often attributing its appearance and phases to deities or supernatural phenomena. These beliefs were challenged and replaced by scientific understanding over time.

* Early scientific interpretations: Early scientific explanations for the Moon's nature were sometimes incorrect. For example, Aristotle believed the Moon reflected sunlight but didn't understand its true nature as a celestial body. These early interpretations evolved as our scientific understanding progressed.

* Conspiracy theories: While there are no credible arguments against the existence of the Moon, there are conspiracy theories that claim the Moon landing was faked or that the Moon is not a natural satellite. These theories lack any scientific basis and are dismissed by the scientific community.

In conclusion, while there are historical interpretations and conspiracy theories surrounding the Moon, there are no valid arguments against its existence or its presence in our sky. The Moon has been a constant presence in our lives and has been a subject of study and fascination for millennia.