Survival is a necessary factor we need to include in a settlement. Survival by definition, is to continue to live in spite of ordeal or circumstance. Applied to our situation, we must survive in Callisto. Despite any complications, we must overcome challenges such as breathing, food, water, muscle deterioration and shelter. These five major challenges for survival will infer any action or task we proceed with.

    We landed in Callisto not too long ago with a plan in our heads. We knew it would be difficult to accomplish, however we definitely knew what had to be done for survival. Generally speaking, we must build a base. “What is this base?” you may ask. Essentially, the base would be able to provide oxygen, food, water, exercise, and shelter, therefore overcoming all five of the challenges.

    We created the “shelter” aspect of the base first. We created a dome that contained living quarters for all to live in. This would provide enough warmth so that the temperature would never reach below 70 degrees Fahrenheit unless instructed to do so. However, the lack of oxygen in the domes would be a problem.

    Therefore, following the living quarters, we set up a greenhouse-like dome to compensate for oxygen and food. Planting vegetation and trees began the production of oxygen. While this was mainly a dome for food, it was a small source of oxygen.

    As for the main source of oxygen, we had set up plants everywhere, literally. To maximize the oxygen output, they were outside and inside each dome. This allows oxygen to travel through all the domes using tubes to connect each dome to another.

    The next problem that we troubleshooted was the lack of water. Since there was a large body of water beneath the surface, this was easily fixable. We created a dome to serve as a water purification chamber as the water was salty.

Finally, an exercise dome was created. Due to the lack of gravity on Callisto, without proper attention to exercise, certain muscles can deteriorate and render people unable to walk. Therefore, we set up a gym full of training equipment and weights to make sure there is not only a way to prevent muscle deterioration but also exercise in general to keep people busy.