Tags Dennis Bushnell Chief Scientist NASA Langley Research Center Commercial Deep Space utilities Mining anti-proton collection Cern DoD SP Space debris space tourism radiation safety microgravity beyond GEO cislunar space returning to the Moon Mars asteroids SpaceX technology readiness levels reusable rockets the nuclear battery power beaming tethers AI robotics 3D Printing BFR space settlement Falcon Heavy SLS GCRs closing the business case commercial deep space R&D commercial deep space market realism ITAR nuclear thermal ISRU sim bio space advocacy lava tubes living underground on Moon and Mars planetary protection Humans to Mars lunar commerce launch cost reduction materials processing commercial deep space regulatory regime commercial space international concerns ISS commercialization space investment opportunities Space Force EMPs tight space budgets Guest Dennis Bushnell Tagline commercial deep space and much much more! View the discussion thread.