Tags Joe Carroll The Space Review: How to clarify human futures beyond Earth on 12-6-21 space shuttle external tanks Joe's space settlement history O'Neill colonies Jon Goff solar system surface gravity bodies artificial gravity Mars chemical surprises BLEO Starship uses sports in space use of inflatables for settlement reusability NASA Gemini 5 & 7 settlement and children determine gravity RX additional information needed settlements without children Artemis Bezos Musk China energy needed interstellar missions Starship as a tanker F9 upper state orbital debris issues Guest Joe Carroll Tagline Joe is back with AG updates, tethers, technology and more View the discussion thread.