"Well, not ... not this moon," Simon replied. "Earth's moon, I mean. In my time, we're not even in the same galaxy as Earth. It ... well, people burned it out. Used it up, and by then they'd discovered space travel, so they just ... everyone moved to this new galaxy. Planets that weren't inhabitable yet were terraformed ... ah. Made so that they resembled Earth in atmosphere and were in habitable.
"We go to a lot of planets, and there are moons that have been terraformed as well. So there ... there are a lot of options for places to live. Some nicer than others," he added. That was about as much detail as he was going to get into though, because otherwise he was getting into the Alliance and Unification and he'd rather not.