This allows a more detailed analysis than was possible in most theoretical precursor studies and enables comparison and validation of aspects of the design with the International Space Station, McMurdo Station in Antartica, Biosphere 2 and the Stanford Torus and Kalpana designs.

Above – Interior view showing end-cap greenhouses and window rings surrounding the hub air-duct. Transfer shafts within the tower blocks connect to "ground level" urban areas separated by farms.

The biggest lighting challenge within a large open space habitat is to illuminate the interior to a level commensurate with human comfort and wellbeing and sufficient for food crops without generating unmanageable amounts of waste heat.