[img]http://i.imgur.com/ynCXeE0.png[/img]

Here's a to-scale image of the moon system we are centered around.

Not shown are the other tiny worlds I have not added yet since they'd either be Ezra without the "dead city world" trait or just asteroids.  

Since even in this star system where there are five or more advanced biosphere hosting worlds (there is four in the Gabriel system... Which is where I want most people to center themselves as the other biospheres are not in the human habitable zone and require much more exotic natives), the majority of worlds are still dead rocks.  Admittedly, many of the worlds have some form of activity on them in the world of mining from the ever present drones (be it the native ancient drones or the mining machines of humans) and you never know what is hiding underground...