Karl Gallagher returns to discussion where science fiction is more fiction than science and vice versa. Host Declan Finn will try to keep up. Karl K. Gallagher is a systems engineer, currently performing data analysis for a major aerospace company. In the past he calculated trajectories for a commercial launch rocket start-up, operated satellites as a US Air Force officer, and selected orbits for government and commercial satellites. Karl lives in Saginaw, TX with his family. So yes, he is a rocket scientist.