> Maybe to send fuel in orbit along several weeks or months instead of with one giant rocket. Less efficient but easier. Unless you're getting fuel from the mo

> Maybe to send fuel in orbit along several weeks or months instead of with one giant rocket. Less efficient but easier. Unless you're getting fuel from the moon, the sensible way to do that is to do your refueling in LEO. Otherwise your tankers of fuel are going to need to refuel in LEO to even get to the lunar gateway in the first place. That's in fact Starship's architecture: It's going to launch on a SuperHeavy booster, and then refuel in Low Earth Orbit, utilising tanker-variants of Starship.