Long-term space flight will take its toll on astronauts including entropy, bone loss, radiation and a feeling of loneliness. For us to send people into long-term space flights, which could take years if not decades we will need to consider modification concepts to our space craft.
There are a number of things we can do. I propose that the water we will need for these space missions be stored along the outer shells of the astronauts quarters thus protect them from radiation. I also propose that the astronaut