propellant refueling

Musk Disputes NASA Estimate of 22 Starship Launches for Artemis Moon Landing

Elon Musk disputes a NASA safety panel estimate that about 22 Starship launches are needed to fuel a lunar lander for the Artemis Moon mission, saying the real figure will be closer to 6 to 8. The disagreement hinges on how much propellant each tanker Starship can deliver to orbit and how much boils off during the complex in-space refueling process.