9 – Water Is The Most Valuable Resource
It sounds odd, doesn’t it? You’re around enough rare metals to crush the Earth, yet the one that prospectors are most eager to find is water. Well, water does fuel life. However, they’re not looking for life but rather fuel.
When broken down into its basic components, water is hydrogen and oxygen. This separation can be achieved via an electrical catalyst with onboard or external equipment. Once broken down, the components of water can be repurposed as electrical energy to support devices such as life-support systems and fuel cells. If left as water, it can be a refreshing beverage.
NASA plans to set up depots in space. They would extract water from nearby sources, carry out the catalyst process, and then siphon it to the docked craft. Essentially, they would be petrol stations in space.