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A variation on a concept from the 2015 Evolvable Lunar Architecture Study and the 2011 NASA Propellant Depot study. Step 1-launch a near empty stage with a lander attached. Step 2-"tanker" stages fill this stage, sized here for a trip to the Moon. Step 3-launch crew to rendezvous with the stage and mate with the … Continue reading Please phrase your answer in the form of a question