Simple Mars Habitat

This habitat is a simple concept but incorporates many features in order for it to function properly. Included are a number of systems using a simple representation utilizing modern or up-and-coming technology. Graphene Solar Panels and an Americium Decay Module provide power, stored in Graphene-Sulfide Batteries. Inbetween two layers of Metal or Composite shell is a layer of water, designed not only to store the precious material on mars, but also acting as a radiation shield. Finally are some basic systems: an air-filter and airlock.