The feasibility of Starship achieving a four-year transit largely hinges on the successful implementation of what system?

Answer

Large-scale in-space propellant transfer

The advertised four-year window for Starship presupposes a highly efficient 'gas station' system established in Earth orbit, allowing the craft to fully load propellant before departure.

The feasibility of Starship achieving a four-year transit largely hinges on the successful implementation of what system?

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