Starship Propellant Transfer Demonstration

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The SpaceX Starship Propellant Transfer Demo is a planned demonstration of essential capabilities required for refueling a Starship in low-Earth orbit. A somewhat similar test occurred during the Starship flight test 3, though the transfer during that test was between two tanks on the same vehicle. The ability to refuel a Starship in low orbit is critical for the NASA Artemis program, as Starship HLS (Human Landing System) requires approximately ten tanker launches of propellant to a depot in orbit to refuel a Starship sufficiently to then reach the lunar surface. It was planned for March 2025 but it is not yet scheduled.

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