NASA admits 22 launches needed for Moon

NASA has effectively conceded that the Artemis program may require twenty-two Starship launches to support a single crewed lunar landing. This specific figure represents a significant shift in how the agency views the logistics of refueling spacecraft in low-Earth orbit. The number is not a final commitment but rather the latest in a series of fluctuating estimates that have long been guarded closely by agency officials.

The core challenge for the Artemis program is refueling. A Starship-based lunar lander must be fully loaded with liquid oxygen and methane propellant in Earth orbit before it can depart for the Moon. This process requires multiple separate flights. One rocket serves as the stationary depot in orbit. Additional tanker rockets must launch separately to deliver the fuel. The total count of these flights is the metric NASA has historically treated with extreme caution, often comparing its secrecy to how the agency handles sensitive nuclear data.

For years, the agency has avoided pinning down a precise number. In 2023, Lisa Watson-Morgan, then the director of NASA’s Human Landing System, told reporters that the agency had a general idea but was reluctant to share exact figures. She later described the requirement as being in the high single digits to the low double digits. That range implied approximately twelve launches, which is still a substantial operational burden for SpaceX.

Other NASA officials have previously suggested the number could be in the high teens. The underlying strategy has always relied on a specific assumption. NASA hoped that SpaceX would significantly increase the lift capacity of the Starship vehicle. A more powerful rocket would carry more fuel per flight, thereby reducing the total number of tanker launches required to fill the depot.

Recent internal assessments suggest that this capacity improvement may not arrive in time. Some NASA officials now fear that the necessary technological leaps will not happen soon enough for Starship to play a major role in returning humans to the Moon this decade. This concern has fueled the latest estimate, which pushes the requirement to twenty-two flights. The higher number reflects a more conservative calculation based on current vehicle performance rather than projected future upgrades.

The estimate was disclosed during the quarterly meeting of the NASA Aerospace Safety Advisory Panel held on Thursday. Charlie Precourt, a former NASA astronaut and current panel member, addressed the group regarding risks associated with the Artemis program. He highlighted the logistical challenges involved in landing humans on the lunar surface. His remarks underscore the growing pressure on the program to finalize its transportation strategy.

The shift to a higher launch count has significant implications for mission planning. More flights mean more opportunities for mechanical failure and more time spent in orbit waiting for refueling windows. It also increases the cost and complexity of the entire operation. SpaceX will need to demonstrate a high reliability rate across twenty separate launches to make the mission viable. Any delay in the tanker flights could push back the entire crewed landing schedule.

While twenty-two is the current working estimate, it remains subject to change. NASA has not officially locked in this number for public communications. The agency continues to evaluate data from recent Starship test flights. The final figure will depend on how quickly SpaceX can refine its vehicle and how efficiently the refueling process can be executed in orbit. For now, the twenty-two launch scenario serves as the baseline for risk analysis within the safety panel.