Tags Ed Wright Space Studies Institute (SSI) Space Access Society SSI:50 Mach Effect (Mach thrusters) Dr. Jim Woodward the High Frontier vision of space settlement conference topics Habitat Design construction Resources space transportation Human Factors & Life in Space economics panel discussion conference logistics SSI Exotic Propulsion Institute Advanced Propulsion Workshop Gerard K. O'Neill chemical rockets Lunar settlement Martian settlement orbital settlement settlement timelines international space settlement efforts space station design settlement design engineering space solar power (SSP) Guest Ed Wright Tagline Space Access and the Space Studies Inst. event later in Seattle View the discussion thread.