Aloha – I just got a look at the next generation Space Station, designed to replace the ISS. It looks to be made out of marshmallows. Take a look for yourself at http://www.fool.com/investing/general/2016/04/24/when-the-international-space-station-goes-kaput-in.aspx
They could face an unwieldy challenge though… have you ever tried to hollow out a giant marshmallow?
The next design is supposed to provide more space with a lower cost of launch. Such things as the accordion design of living spaces on Mars and the Moon may be as viable and cost even less to set up.
Hmmm…. still marshmallows. Well, anyway, the space station version is in a giant tic tac to arrangement so I guess that is their idea of original. I wonder if you can do criss cross in that array or if you have to always move vertical or horizontal. Guess we have to wait until 2024 to find out.