90%, give or take, of space fiction tends to have space-based militaries use naval ranks. They also tend to use naval terminology (port/starboard, bridge, fleets, etc.). The handful that don't will tend to use army ranks and terminology. So, I thought it would be a neat exercise to come up with a space-based terminology that is original. Unfortunately, other than officers being various gradations of Cosmonaut, Astronaut, and Taikonaut, I've got nothing. Any thoughts?