They heard the moon was made of cheese, but it turns out it's just a bunch of space rocks.
But don't worry, the real reason they're there is for the free bananas. It's a little-known fact that the moon has an abundance of lunar fruit, and the ChimpPropheticPuns are here to take advantage of it!
And don't even get us started on the moon's amazing Wi-Fi. It's like, who needs a strong signal when you can have a strong desire for monkeying around on a lunar network?