Advice Needed: No Extraterrestrial Adsense income

As everybody is probably aware Adsense started today on the 1. of April with advertising on other Planets and Moons. But how do I increase my revenue on extraterrestrial Objects?

At the moment it looks like this:



As you can see no clicks from the Moon and Europa, but why?

I'm relieved now, somebody orbiting Jupiter clicked my ads at least: