Jack of Harts

The original lunar colonies of Alpha Centauri were low to effectively zero gravity affairs.  Some moons were little more than an anchor for an attached colony.  Others dug massive underground warrens and filled them with air.  Low gravity was the common factor.  The acceptance of Peloran gravtech changed everything.  Inexpensive gravtiles have made it easy to bring standard gravity to most extreme environments, dramatically increasing our colonization options.