NASA Officials Cite 22 Launches as New Benchmark for Lunar Fueling

The number of rockets required to send humans to the Moon has just risen significantly in official estimates.

During a quarterly meeting of the NASA Aerospace Safety Advisory Panel on Thursday, panel member Charlie Precourt, a former NASA astronaut, discussed the risks associated with the Artemis Program. Precourt highlighted the logistical challenges of landing people on the lunar surface. He noted that the agency is now looking at a figure of 22 launches for a specific aspect of the mission. This update comes from a group that advises NASA on safety matters and provides a clearer picture of the operational demands placed on SpaceX.

The core issue revolves around how to fuel a Starship-based lunar lander in low-Earth orbit. To send a crew to the Moon and back, the spacecraft needs a massive amount of liquid oxygen and methane propellant. This fuel must be delivered to the lander while it is in orbit. The process involves launching a stationary depot vehicle first, which then receives fuel from multiple tanker rockets. The 22-launch estimate includes the initial depot flight and the subsequent tanker flights required to fill the tanks. This is a substantial increase from previous rough guesses and indicates a more complex logistical operation than previously hoped.

NASA has historically been secretive about this specific metric, treating it with a level of caution often reserved for sensitive technical data. For years, officials have offered vague responses when pressed for details. In 2023, Lisa Watson-Morgan, who was then the director of NASA’s Human Landing System, told reporters that the agency had a general idea but was reluctant to state the exact number. She later described the estimate as being in the high single digits to the low double digits, suggesting around a dozen launches. Other officials have at various times suggested the number might be in the high teens. These earlier figures implied a manageable, if large, number of flights.

The shift to a higher estimate raises concerns about the timeline for the Artemis missions. The original hope was that SpaceX would dramatically improve the lift capacity of the Starship rocket. Such improvements would reduce the number of tanker flights needed to fill the depot. However, some NASA officials are now worried that these efficiency gains may not arrive soon enough. This delay could impact SpaceX’s ability to play a meaningful role in returning humans to the Moon within the current decade. The increased number of launches means more time spent in orbit and more opportunities for things to go wrong.

The safety panel’s discussion underscores the growing complexity of the program. Precourt’s comments were part of a broader review of risks associated with the lunar landing efforts. The panel serves as an independent check on NASA’s plans, ensuring that safety considerations are thoroughly examined. Their findings often influence internal agency decisions and public communications. By putting a specific number on the table, the panel has moved the conversation from vague estimates to concrete planning figures. This transparency, while sometimes uncomfortable for the agency, helps stakeholders understand the true scale of the undertaking.

The next steps for the program will depend on how NASA and SpaceX respond to this new benchmark. The agency will need to assess whether the current schedule can accommodate 22 launches or if adjustments are necessary. SpaceX will likely focus on accelerating the development of more efficient variants of the Starship vehicle. The interplay between these two organizations will be crucial in determining the pace of the Artemis program. As the decade progresses, the pressure to deliver on promises will only intensify.

For now, the 22-launch figure stands as the latest official estimate. It represents a significant hurdle that must be overcome to achieve the goal of a crewed lunar landing. The path forward requires careful coordination, rigorous testing, and continuous improvement in launch capabilities. The coming months will reveal how the agencies adapt to this new reality and what changes they make to their long-term plans.