Why did Satan fall to Earth? He could have fell to Mars, Venus, or GJ667Cc. I understand that he needed to be cast out of heaven, but why to Earth where he has caused more trouble?  Are there any apocryphal books which describe this differently?
This question would not have even made sense to anyone prior to Copernicus, let alone to anyone who originally heard or received this image.  

When this story was first received, there would have been no other body for him to land on. The earth was the center of all, and the "wandering stars" aka other planets, were just lights in the sky. 

One of the most commonly applied ruled of hermeneutics is that a text can not mean what it could not mean to the original hearers. In other words, if a lie is held widely enough, it must be addressed in terms of the lie. Our cosmology may have changed, but to the original storytellers, it was the truth. 

Bear that in mind, and the answer to your question becomes obvious: there was no other place for Him to go.