During his doctoral research, he performed his internship at NASA Ames Research Center focusing on Martian Base architecture. His concept design of a suborbital spacecraft interior Silverbird won an Arthur C. Clarke Foundation prize for a unique contribution to the safety of human spaceflight. Dr. Doule is also active in space architecture outreach. Several of his activities are coordinated through a virtual innovation studio and online design platform called Space Innovations. His research focuses on the theory of design, design methods, and architecture with particular focus on extreme environments. Main incentives for his research and outreach activities are innovative transfer, integration and application of new space and terrestrial design methods and technologies; and the integration of space, aerospace and terrestrial domain, to enable faster and more effective project development.